diff --git a/apis/src/main/kotlin/org/yapp/apis/book/controller/BookControllerApi.kt b/apis/src/main/kotlin/org/yapp/apis/book/controller/BookControllerApi.kt
index e88075d9..b5d06d45 100644
--- a/apis/src/main/kotlin/org/yapp/apis/book/controller/BookControllerApi.kt
+++ b/apis/src/main/kotlin/org/yapp/apis/book/controller/BookControllerApi.kt
@@ -101,7 +101,7 @@ interface BookControllerApi {
             ),
             ApiResponse(
                 responseCode = "404",
-                description = "존재하지 않는 책 (ISBN 오류)",
+                description = "존재하지 않는 책 (ISBN13 오류)",
                 content = [Content(schema = Schema(implementation = ErrorResponse::class))]
             )
         ]
diff --git a/apis/src/main/kotlin/org/yapp/apis/book/dto/request/BookCreateRequest.kt b/apis/src/main/kotlin/org/yapp/apis/book/dto/request/BookCreateRequest.kt
index bb89d0f0..3265d21f 100644
--- a/apis/src/main/kotlin/org/yapp/apis/book/dto/request/BookCreateRequest.kt
+++ b/apis/src/main/kotlin/org/yapp/apis/book/dto/request/BookCreateRequest.kt
@@ -1,26 +1,28 @@
 package org.yapp.apis.book.dto.request
 
 import io.swagger.v3.oas.annotations.media.Schema
-import jakarta.validation.constraints.Max
-import jakarta.validation.constraints.Min
-import jakarta.validation.constraints.NotBlank
-import jakarta.validation.constraints.Size
+import jakarta.validation.constraints.*
 import org.yapp.apis.book.dto.response.BookDetailResponse
+import org.yapp.globalutils.util.RegexUtils
 
 @Schema(
     title = "책 생성 요청",
     description = "시스템에 새로운 책 정보를 생성하는 요청 (주로 내부 API에서 사용)"
 )
 data class BookCreateRequest private constructor(
-    @field:NotBlank(message = "ISBN은 필수입니다.")
+    @field:NotBlank(message = "ISBN13은 필수입니다.")
+    @field:Pattern(
+        regexp = RegexUtils.ISBN13_PATTERN,
+        message = "유효한 13자리 ISBN13 형식이 아닙니다."
+    )
     @Schema(
-        description = "책의 13자리 ISBN 코드",
+        description = "책의 13자리 ISBN13 코드",
         example = "9788932473901",
         required = true,
         minLength = 13,
         maxLength = 13
     )
-    val isbn: String? = null,
+    val isbn13: String? = null,
 
     @field:NotBlank(message = "제목은 필수입니다.")
     @field:Size(max = 500, message = "제목은 500자 이내여야 합니다.")
@@ -81,26 +83,25 @@ data class BookCreateRequest private constructor(
     )
     val description: String? = null
 ) {
-    fun validIsbn(): String = isbn!!
+    fun validIsbn13(): String = isbn13!!
     fun validTitle(): String = title!!
     fun validAuthor(): String = author!!
     fun validPublisher(): String = publisher!!
     fun validCoverImageUrl(): String = coverImageUrl!!
 
     companion object {
-
-        fun from(bookDetail: BookDetailResponse): BookCreateRequest {
-            val finalIsbn = bookDetail.isbn13
-            ?: throw IllegalArgumentException("ISBN이 존재하지 않습니다.")
+        fun from(bookDetailResponse: BookDetailResponse): BookCreateRequest {
+            val finalIsbn13 = bookDetailResponse.isbn13
+            ?: throw IllegalArgumentException("ISBN13이 존재하지 않습니다.")
 
             return BookCreateRequest(
-                isbn = finalIsbn,
-                title = bookDetail.title,
-                author = bookDetail.author,
-                publisher = bookDetail.publisher,
-                publicationYear = parsePublicationYear(bookDetail.pubDate),
-                coverImageUrl = bookDetail.coverImageUrl,
-                description = bookDetail.description,
+                isbn13 = finalIsbn13,
+                title = bookDetailResponse.title,
+                author = bookDetailResponse.author,
+                publisher = bookDetailResponse.publisher,
+                publicationYear = parsePublicationYear(bookDetailResponse.pubDate),
+                coverImageUrl = bookDetailResponse.coverImageUrl,
+                description = bookDetailResponse.description,
             )
         }
 
diff --git a/apis/src/main/kotlin/org/yapp/apis/book/dto/request/BookDetailRequest.kt b/apis/src/main/kotlin/org/yapp/apis/book/dto/request/BookDetailRequest.kt
index d8bb18fa..c4f3dafb 100644
--- a/apis/src/main/kotlin/org/yapp/apis/book/dto/request/BookDetailRequest.kt
+++ b/apis/src/main/kotlin/org/yapp/apis/book/dto/request/BookDetailRequest.kt
@@ -7,32 +7,31 @@ import org.yapp.globalutils.util.RegexUtils
 
 @Schema(
     title = "책 상세 정보 요청",
-    description = "특정 ISBN을 통한 책 상세 정보 조회 요청"
+    description = "특정 ISBN13을 통한 책 상세 정보 조회 요청"
 )
 data class BookDetailRequest private constructor(
-    @field:NotBlank(message = "ISBN은 비어 있을 수 없습니다.")
+    @field:NotBlank(message = "ISBN13은 비어 있을 수 없습니다.")
     @field:Pattern(
         regexp = RegexUtils.ISBN13_PATTERN,
-        message = "유효한 13자리 ISBN 형식이 아닙니다."
+        message = "유효한 13자리 ISBN13 형식이 아닙니다."
     )
     @Schema(
         description = "조회할 책의 13자리 ISBN 코드",
         example = "9788932473901",
         required = true,
-        pattern = "\\d{13}",
         minLength = 13,
         maxLength = 13
     )
-    val isbn: String? = null,
+    val isbn13: String? = null,
 ) {
-    fun validIsbn(): String = isbn!!
+    fun validIsbn13(): String = isbn13!!
 
     companion object {
         fun from(
-            isbn: String?,
+            isbn13: String,
         ): BookDetailRequest {
             return BookDetailRequest(
-                isbn = isbn,
+                isbn13 = isbn13,
             )
         }
     }
diff --git a/apis/src/main/kotlin/org/yapp/apis/book/dto/request/UpsertUserBookRequest.kt b/apis/src/main/kotlin/org/yapp/apis/book/dto/request/UpsertUserBookRequest.kt
index fd466fa5..a6259774 100644
--- a/apis/src/main/kotlin/org/yapp/apis/book/dto/request/UpsertUserBookRequest.kt
+++ b/apis/src/main/kotlin/org/yapp/apis/book/dto/request/UpsertUserBookRequest.kt
@@ -3,9 +3,11 @@ package org.yapp.apis.book.dto.request
 import io.swagger.v3.oas.annotations.media.Schema
 import jakarta.validation.constraints.NotBlank
 import jakarta.validation.constraints.NotNull
+import jakarta.validation.constraints.Pattern
 import jakarta.validation.constraints.Size
 import org.yapp.apis.book.dto.response.BookCreateResponse
 import org.yapp.domain.userbook.BookStatus
+import org.yapp.globalutils.util.RegexUtils
 import java.util.UUID
 
 @Schema(
@@ -31,15 +33,19 @@ data class UpsertUserBookRequest private constructor(
     )
     val bookId: UUID? = null,
 
-    @field:NotBlank(message = "책 ISBN은 필수입니다.")
+    @field:NotBlank(message = "책 ISBN13은 필수입니다.")
+    @field:Pattern(
+        regexp = RegexUtils.ISBN13_PATTERN,
+        message = "유효한 13자리 ISBN13 형식이 아닙니다."
+    )
     @Schema(
-        description = "책의 13자리 ISBN 코드",
+        description = "책의 13자리 ISBN13 코드",
         example = "9788932473901",
         required = true,
         minLength = 13,
         maxLength = 13
     )
-    val bookIsbn: String? = null,
+    val isbn13: String? = null,
 
     @field:NotBlank(message = "책 제목은 필수입니다.")
     @field:Size(max = 500, message = "책 제목은 500자 이내여야 합니다.")
@@ -94,7 +100,7 @@ data class UpsertUserBookRequest private constructor(
 ) {
     fun validUserId(): UUID = userId!!
     fun validBookId(): UUID = bookId!!
-    fun validBookIsbn(): String = bookIsbn!!
+    fun validBookIsbn13(): String = isbn13!!
     fun validBookTitle(): String = bookTitle!!
     fun validBookAuthor(): String = bookAuthor!!
     fun validBookPublisher(): String = bookPublisher!!
@@ -110,7 +116,7 @@ data class UpsertUserBookRequest private constructor(
             return UpsertUserBookRequest(
                 userId = userId,
                 bookId = bookCreateResponse.bookId,
-                bookIsbn = bookCreateResponse.isbn,
+                isbn13 = bookCreateResponse.isbn13,
                 bookTitle = bookCreateResponse.title,
                 bookAuthor = bookCreateResponse.author,
                 bookPublisher = bookCreateResponse.publisher,
diff --git a/apis/src/main/kotlin/org/yapp/apis/book/dto/request/UserBookRegisterRequest.kt b/apis/src/main/kotlin/org/yapp/apis/book/dto/request/UserBookRegisterRequest.kt
index ef140ed1..fede450d 100644
--- a/apis/src/main/kotlin/org/yapp/apis/book/dto/request/UserBookRegisterRequest.kt
+++ b/apis/src/main/kotlin/org/yapp/apis/book/dto/request/UserBookRegisterRequest.kt
@@ -3,22 +3,28 @@ package org.yapp.apis.book.dto.request
 import io.swagger.v3.oas.annotations.media.Schema
 import jakarta.validation.constraints.NotBlank
 import jakarta.validation.constraints.NotNull
+import jakarta.validation.constraints.Pattern
 import org.yapp.domain.userbook.BookStatus
+import org.yapp.globalutils.util.RegexUtils
 
 @Schema(
     title = "사용자 도서 등록 요청",
     description = "사용자의 서재에 도서를 등록하거나 상태를 변경하는 요청"
 )
 data class UserBookRegisterRequest private constructor(
-    @field:NotBlank(message = "ISBN은 필수입니다.")
+    @field:NotBlank(message = "ISBN13은 비어 있을 수 없습니다.")
+    @field:Pattern(
+        regexp = RegexUtils.ISBN13_PATTERN,
+        message = "유효한 13자리 ISBN13 형식이 아닙니다."
+    )
     @Schema(
-        description = "등록할 책의 13자리 ISBN 코드",
+        description = "등록할 책의 13자리 ISBN13 코드",
         example = "9788932473901",
         required = true,
         minLength = 13,
         maxLength = 13
     )
-    val bookIsbn: String? = null,
+    val isbn13: String? = null,
 
     @field:NotNull(message = "도서 상태는 필수입니다.")
     @Schema(
@@ -30,6 +36,6 @@ data class UserBookRegisterRequest private constructor(
     )
     val bookStatus: BookStatus? = null
 ) {
-    fun validBookIsbn(): String = bookIsbn!!
+    fun validIsbn13(): String = isbn13!!
     fun validBookStatus(): BookStatus = bookStatus!!
 }
diff --git a/apis/src/main/kotlin/org/yapp/apis/book/dto/request/UserBooksByIsbnsRequest.kt b/apis/src/main/kotlin/org/yapp/apis/book/dto/request/UserBooksByIsbn13sRequest.kt
similarity index 59%
rename from apis/src/main/kotlin/org/yapp/apis/book/dto/request/UserBooksByIsbnsRequest.kt
rename to apis/src/main/kotlin/org/yapp/apis/book/dto/request/UserBooksByIsbn13sRequest.kt
index fbc0d8c9..74b79f6c 100644
--- a/apis/src/main/kotlin/org/yapp/apis/book/dto/request/UserBooksByIsbnsRequest.kt
+++ b/apis/src/main/kotlin/org/yapp/apis/book/dto/request/UserBooksByIsbn13sRequest.kt
@@ -6,10 +6,10 @@ import jakarta.validation.constraints.NotNull
 import java.util.UUID
 
 @Schema(
-    name = "UserBooksByIsbnsRequest",
-    description = "Request DTO for finding user books by user ID and a list of ISBNs"
+    name = "UserBooksByIsbn13sRequest",
+    description = "Request DTO for finding user books by user ID and a list of ISBN13s"
 )
-data class UserBooksByIsbnsRequest private constructor(
+data class UserBooksByIsbn13sRequest private constructor(
     @Schema(
         description = "사용자 ID",
         example = "1"
@@ -21,16 +21,16 @@ data class UserBooksByIsbnsRequest private constructor(
         description = "도서 ISBN 목록",
         example = "[\"9788966262429\", \"9791190412351\"]"
     )
-    @field:NotEmpty(message = "isbns는 비어있을 수 없습니다.")
-    val isbns: List<String>? = null
+    @field:NotEmpty(message = "isbn13 리스트는 비어있을 수 없습니다.")
+    val isbn13s: List<String>? = null
 
 ) {
     fun validUserId(): UUID = userId!!
-    fun validIsbns(): List<String> = isbns!!
+    fun validIsbn13s(): List<String> = isbn13s!!
 
     companion object {
-        fun of(userId: UUID, isbns: List<String>): UserBooksByIsbnsRequest {
-            return UserBooksByIsbnsRequest(userId = userId, isbns = isbns)
+        fun of(userId: UUID, isbn13s: List<String>): UserBooksByIsbn13sRequest {
+            return UserBooksByIsbn13sRequest(userId = userId, isbn13s = isbn13s)
         }
     }
 }
diff --git a/apis/src/main/kotlin/org/yapp/apis/book/dto/response/BookCreateResponse.kt b/apis/src/main/kotlin/org/yapp/apis/book/dto/response/BookCreateResponse.kt
index 449c0bf5..7235afdb 100644
--- a/apis/src/main/kotlin/org/yapp/apis/book/dto/response/BookCreateResponse.kt
+++ b/apis/src/main/kotlin/org/yapp/apis/book/dto/response/BookCreateResponse.kt
@@ -6,7 +6,7 @@ import java.util.UUID
 
 data class BookCreateResponse private constructor(
     val bookId: UUID,
-    val isbn: String,
+    val isbn13: String,
     val title: String,
     val author: String,
     val publisher: String,
@@ -16,7 +16,7 @@ data class BookCreateResponse private constructor(
         fun from(bookVO: BookInfoVO): BookCreateResponse {
             return BookCreateResponse(
                 bookId = bookVO.id.value,
-                isbn = bookVO.isbn.value,
+                isbn13 = bookVO.isbn13.value,
                 title = bookVO.title,
                 author = bookVO.author,
                 publisher = bookVO.publisher,
diff --git a/apis/src/main/kotlin/org/yapp/apis/book/dto/response/UserBookResponse.kt b/apis/src/main/kotlin/org/yapp/apis/book/dto/response/UserBookResponse.kt
index 133edfdf..2879a9b5 100644
--- a/apis/src/main/kotlin/org/yapp/apis/book/dto/response/UserBookResponse.kt
+++ b/apis/src/main/kotlin/org/yapp/apis/book/dto/response/UserBookResponse.kt
@@ -9,7 +9,7 @@ import java.util.UUID
 data class UserBookResponse private constructor(
     val userBookId: UUID,
     val userId: UUID,
-    val bookIsbn: String,
+    val isbn13: String,
     val bookTitle: String,
     val bookAuthor: String,
     val status: BookStatus,
@@ -26,7 +26,7 @@ data class UserBookResponse private constructor(
             return UserBookResponse(
                 userBookId = userBook.id.value,
                 userId = userBook.userId.value,
-                bookIsbn = userBook.bookIsbn.value,
+                isbn13 = userBook.bookIsbn13.value,
                 bookTitle = userBook.title,
                 bookAuthor = BookDataValidator.removeParenthesesFromAuthor(userBook.author),
                 status = userBook.status,
diff --git a/apis/src/main/kotlin/org/yapp/apis/book/service/AladinBookQueryService.kt b/apis/src/main/kotlin/org/yapp/apis/book/service/AladinBookQueryService.kt
index c6a94a54..99898421 100644
--- a/apis/src/main/kotlin/org/yapp/apis/book/service/AladinBookQueryService.kt
+++ b/apis/src/main/kotlin/org/yapp/apis/book/service/AladinBookQueryService.kt
@@ -16,6 +16,7 @@ import org.yapp.infra.external.aladin.AladinApi
 import org.yapp.infra.external.aladin.request.AladinBookLookupRequest
 import org.yapp.infra.external.aladin.request.AladinBookSearchRequest
 import org.yapp.infra.external.aladin.response.AladinBookDetailResponse
+import org.yapp.infra.external.aladin.response.AladinSearchItem
 import org.yapp.infra.external.aladin.response.AladinSearchResponse
 
 @Service
@@ -46,12 +47,7 @@ class AladinBookQueryService(
             }
 
         val filteredItems = response.item.filter { item ->
-            val isbn13 = item.isbn13?.takeIf { it.isNotBlank() } 
-                ?: item.isbn?.let { IsbnConverter.toIsbn13(it) }
-            
-            isbn13?.let { 
-                IsbnValidator.isValidIsbn(it) && !it.startsWith("K", ignoreCase = true)
-            } ?: false
+            getValidAndFilteredIsbn13(item) != null
         }
 
         val filteredResponse = AladinSearchResponse(
@@ -73,10 +69,10 @@ class AladinBookQueryService(
 
     override fun getBookDetail(@Valid request: BookDetailRequest): BookDetailResponse {
         log.info("Service - Converting BookDetailRequest to AladinBookLookupRequest and calling Aladin API for book detail lookup.")
-        val aladinLookupRequest = AladinBookLookupRequest.from(request.validIsbn())
+        val aladinLookupRequest = AladinBookLookupRequest.from(request.validIsbn13())
         val response: AladinBookDetailResponse = aladinApi.lookupBook(aladinLookupRequest)
             .onSuccess { response ->
-                log.info("Aladin lookup successful for itemId: '${aladinLookupRequest.itemId}', title: ${response.item?.firstOrNull()?.title}")
+                log.info("Aladin lookup successful for itemId: '${aladinLookupRequest.itemId}', title: ${response.item.firstOrNull()?.title}")
             }
             .getOrElse { exception ->
                 log.error("Failed to call Aladin lookup API for request: '$request'", exception)
@@ -84,4 +80,17 @@ class AladinBookQueryService(
             }
         return BookDetailResponse.from(response)
     }
+
+
+    private fun getValidAndFilteredIsbn13(item: AladinSearchItem): String? {
+        val primaryIsbn13 = item.isbn13
+            ?.takeIf { it.isNotBlank() && IsbnValidator.isValidIsbn13(it) }
+
+        val convertedIsbn13 = item.isbn
+            ?.takeIf { it.isNotBlank() && IsbnValidator.isValidIsbn10(it) }
+            ?.let { validIsbn10 -> IsbnConverter.toIsbn13(validIsbn10) }
+            ?.takeIf { IsbnValidator.isValidIsbn13(it) }
+
+        return primaryIsbn13 ?: convertedIsbn13
+    }
 }
diff --git a/apis/src/main/kotlin/org/yapp/apis/book/service/BookManagementService.kt b/apis/src/main/kotlin/org/yapp/apis/book/service/BookManagementService.kt
index 559b118b..3fbb382a 100644
--- a/apis/src/main/kotlin/org/yapp/apis/book/service/BookManagementService.kt
+++ b/apis/src/main/kotlin/org/yapp/apis/book/service/BookManagementService.kt
@@ -14,7 +14,7 @@ class BookManagementService(
 ) {
     fun findOrCreateBook(@Valid request: BookCreateRequest): BookCreateResponse {
         val bookInfoVO = bookDomainService.findOrCreate(
-            request.validIsbn(),
+            request.validIsbn13(),
             request.validTitle(),
             request.validAuthor(),
             request.validPublisher(),
diff --git a/apis/src/main/kotlin/org/yapp/apis/book/service/BookQueryService.kt b/apis/src/main/kotlin/org/yapp/apis/book/service/BookQueryService.kt
index cc1527e4..9f966f88 100644
--- a/apis/src/main/kotlin/org/yapp/apis/book/service/BookQueryService.kt
+++ b/apis/src/main/kotlin/org/yapp/apis/book/service/BookQueryService.kt
@@ -1,6 +1,5 @@
 package org.yapp.apis.book.service
 
-import jakarta.validation.Valid
 import org.yapp.apis.book.dto.request.BookDetailRequest
 import org.yapp.apis.book.dto.request.BookSearchRequest
 import org.yapp.apis.book.dto.response.BookDetailResponse
@@ -8,5 +7,5 @@ import org.yapp.apis.book.dto.response.BookSearchResponse
 
 sealed interface BookQueryService {
     fun searchBooks(request: BookSearchRequest): BookSearchResponse
-    fun getBookDetail(@Valid request: BookDetailRequest): BookDetailResponse
+    fun getBookDetail(request: BookDetailRequest): BookDetailResponse
 }
diff --git a/apis/src/main/kotlin/org/yapp/apis/book/service/UserBookService.kt b/apis/src/main/kotlin/org/yapp/apis/book/service/UserBookService.kt
index 7b0db48c..6b0544cd 100644
--- a/apis/src/main/kotlin/org/yapp/apis/book/service/UserBookService.kt
+++ b/apis/src/main/kotlin/org/yapp/apis/book/service/UserBookService.kt
@@ -5,7 +5,7 @@ import org.springframework.data.domain.Page
 import org.springframework.data.domain.Pageable
 import org.springframework.stereotype.Service
 import org.springframework.validation.annotation.Validated
-import org.yapp.apis.book.dto.request.UserBooksByIsbnsRequest
+import org.yapp.apis.book.dto.request.UserBooksByIsbn13sRequest
 import org.yapp.apis.book.dto.request.UpsertUserBookRequest
 import org.yapp.apis.book.dto.response.UserBookPageResponse
 import org.yapp.apis.book.dto.response.UserBookResponse
@@ -25,7 +25,7 @@ class UserBookService(
         val userBookInfoVO = userBookDomainService.upsertUserBook(
             upsertUserBookRequest.validUserId(),
             upsertUserBookRequest.validBookId(),
-            upsertUserBookRequest.validBookIsbn(),
+            upsertUserBookRequest.validBookIsbn13(),
             upsertUserBookRequest.validBookTitle(),
             upsertUserBookRequest.validBookAuthor(),
             upsertUserBookRequest.validBookPublisher(),
@@ -44,16 +44,16 @@ class UserBookService(
         }
     }
 
-    fun findAllByUserIdAndBookIsbnIn(@Valid userBooksByIsbnsRequest: UserBooksByIsbnsRequest): List<UserBookResponse> {
-        val userBooks = userBookDomainService.findAllByUserIdAndBookIsbnIn(
-            userBooksByIsbnsRequest.validUserId(),
-            userBooksByIsbnsRequest.validIsbns(),
+    fun findAllByUserIdAndBookIsbn13In(@Valid userBooksByIsbn13sRequest: UserBooksByIsbn13sRequest): List<UserBookResponse> {
+        val userBooks = userBookDomainService.findAllByUserIdAndBookIsbn13In(
+            userBooksByIsbn13sRequest.validUserId(),
+            userBooksByIsbn13sRequest.validIsbn13s(),
         )
         return userBooks.map { UserBookResponse.from(it) }
     }
 
-    fun findUserBookStatusByIsbn(userId: UUID, isbn: String): BookStatus? {
-        val userBook = userBookDomainService.findByUserIdAndBookIsbn(userId, isbn)
+    fun findUserBookStatusByIsbn13(userId: UUID, isbn13: String): BookStatus? {
+        val userBook = userBookDomainService.findByUserIdAndBookIsbn13(userId, isbn13)
         return userBook?.status
     }
 
diff --git a/apis/src/main/kotlin/org/yapp/apis/book/usecase/BookUseCase.kt b/apis/src/main/kotlin/org/yapp/apis/book/usecase/BookUseCase.kt
index 25e5e5c5..72703d19 100644
--- a/apis/src/main/kotlin/org/yapp/apis/book/usecase/BookUseCase.kt
+++ b/apis/src/main/kotlin/org/yapp/apis/book/usecase/BookUseCase.kt
@@ -4,10 +4,11 @@ package org.yapp.apis.book.usecase
 import org.springframework.beans.factory.annotation.Qualifier
 import org.springframework.data.domain.Pageable
 import org.springframework.transaction.annotation.Transactional
-import org.yapp.apis.book.dto.request.UserBooksByIsbnsRequest
+import org.yapp.apis.book.dto.request.UserBooksByIsbn13sRequest
 import org.yapp.apis.book.dto.request.*
 import org.yapp.apis.book.dto.response.BookDetailResponse
 import org.yapp.apis.book.dto.response.BookSearchResponse
+import org.yapp.apis.book.dto.response.BookSearchResponse.*
 import org.yapp.apis.book.dto.response.UserBookPageResponse
 import org.yapp.apis.book.dto.response.UserBookResponse
 import org.yapp.apis.book.service.BookManagementService
@@ -50,7 +51,7 @@ class BookUseCase(
         val isbn13 = bookDetailResponse.isbn13
             ?: return bookDetailResponse.withUserBookStatus(BookStatus.BEFORE_REGISTRATION)
 
-        val userBookStatus = userBookService.findUserBookStatusByIsbn(userId, isbn13)
+        val userBookStatus = userBookService.findUserBookStatusByIsbn13(userId, isbn13)
             ?: BookStatus.BEFORE_REGISTRATION
 
         return bookDetailResponse.withUserBookStatus(userBookStatus)
@@ -63,7 +64,7 @@ class BookUseCase(
     ): UserBookResponse {
         userService.validateUserExists(userId)
 
-        val bookDetailResponse = bookQueryService.getBookDetail(BookDetailRequest.from(request.validBookIsbn()))
+        val bookDetailResponse = bookQueryService.getBookDetail(BookDetailRequest.from(request.validIsbn13()))
         val bookCreateResponse = bookManagementService.findOrCreateBook(BookCreateRequest.from(bookDetailResponse))
         val upsertUserBookRequest = UpsertUserBookRequest.of(
             userId = userId,
@@ -88,36 +89,33 @@ class BookUseCase(
     }
 
     private fun mergeWithUserBookStatus(
-        searchedBooks: List<BookSearchResponse.BookSummary>,
+        searchedBooks: List<BookSummary>,
         userId: UUID
-    ): List<BookSearchResponse.BookSummary> {
+    ): List<BookSummary> {
         if (searchedBooks.isEmpty()) {
             return emptyList()
         }
 
-        val isbn13List = searchedBooks.map { it.isbn13 }
-        val userBookStatusMap = getUserBookStatusMap(isbn13List, userId)
+        val isbn13s = searchedBooks.map { it.isbn13 }
+        val userBookStatusMap = getUserBookStatusMap(isbn13s, userId)
 
         return searchedBooks.map { bookSummary ->
-            val userStatus = userBookStatusMap[bookSummary.isbn13]
-            if (userStatus != null) {
-                bookSummary.updateStatus(userStatus)
-            } else {
-                bookSummary
-            }
+            userBookStatusMap[bookSummary.isbn13]
+                ?.let { bookSummary.updateStatus(it) }
+                ?: bookSummary
         }
     }
 
     private fun getUserBookStatusMap(
-        isbn13List: List<String>,
+        isbn13s: List<String>,
         userId: UUID
     ): Map<String, BookStatus> {
-        val userBooksResponse = userBookService.findAllByUserIdAndBookIsbnIn(
-            UserBooksByIsbnsRequest.of(userId, isbn13List)
+        val userBooksResponse = userBookService.findAllByUserIdAndBookIsbn13In(
+            UserBooksByIsbn13sRequest.of(userId, isbn13s)
         )
 
         return userBooksResponse.associate { userBook ->
-            userBook.bookIsbn to userBook.status
+            userBook.isbn13 to userBook.status
         }
     }
 }
diff --git a/domain/src/main/kotlin/org/yapp/domain/book/Book.kt b/domain/src/main/kotlin/org/yapp/domain/book/Book.kt
index d9286495..48ec8870 100644
--- a/domain/src/main/kotlin/org/yapp/domain/book/Book.kt
+++ b/domain/src/main/kotlin/org/yapp/domain/book/Book.kt
@@ -7,7 +7,7 @@ import java.util.*
 
 data class Book private constructor(
     val id: Id,
-    val isbn: Isbn,
+    val isbn13: Isbn13,
     val title: String,
     val author: String,
     val publisher: String,
@@ -20,7 +20,7 @@ data class Book private constructor(
 ) {
     companion object {
         fun create(
-            isbn: String,
+            isbn13: String,
             title: String,
             author: String,
             publisher: String,
@@ -30,7 +30,7 @@ data class Book private constructor(
         ): Book {
             return Book(
                 id = Id.newInstance(UuidGenerator.create()),
-                isbn = Isbn.newInstance(isbn),
+                isbn13 = Isbn13.newInstance(isbn13),
                 title = title,
                 author = author,
                 publisher = publisher,
@@ -42,7 +42,7 @@ data class Book private constructor(
 
         fun reconstruct(
             id: Id,
-            isbn: Isbn,
+            isbn13: Isbn13,
             title: String,
             author: String,
             publisher: String,
@@ -55,7 +55,7 @@ data class Book private constructor(
         ): Book {
             return Book(
                 id = id,
-                isbn = isbn,
+                isbn13 = isbn13,
                 title = title,
                 author = author,
                 publisher = publisher,
@@ -77,11 +77,11 @@ data class Book private constructor(
     }
 
     @JvmInline
-    value class Isbn(val value: String) {
+    value class Isbn13(val value: String) {
         companion object {
-            fun newInstance(value: String): Isbn {
-                require(IsbnValidator.isValidIsbn(value)) { "ISBN must be a 10 or 13-digit number." }
-                return Isbn(value)
+            fun newInstance(value: String): Isbn13 {
+                require(IsbnValidator.isValidIsbn13(value)) { "ISBN must be a 10 or 13-digit number." }
+                return Isbn13(value)
             }
         }
     }
diff --git a/domain/src/main/kotlin/org/yapp/domain/book/BookDomainService.kt b/domain/src/main/kotlin/org/yapp/domain/book/BookDomainService.kt
index 023145b7..c0cef53f 100644
--- a/domain/src/main/kotlin/org/yapp/domain/book/BookDomainService.kt
+++ b/domain/src/main/kotlin/org/yapp/domain/book/BookDomainService.kt
@@ -17,7 +17,7 @@ class BookDomainService(
     }
 
     fun findOrCreate(
-        isbn: String,
+        isbn13: String,
         title: String,
         author: String,
         publisher: String,
@@ -25,9 +25,9 @@ class BookDomainService(
         publicationYear: Int? = null,
         description: String? = null
     ): BookInfoVO {
-        return findByIsbnOrNull(isbn) ?: run {
+        return findByIsbn13OrNull(isbn13) ?: run {
             val newBook = Book.create(
-                isbn = isbn,
+                isbn13 = isbn13,
                 title = title,
                 author = author,
                 publisher = publisher,
@@ -40,14 +40,8 @@ class BookDomainService(
         }
     }
 
-    private fun findByIsbnOrNull(isbn: String): BookInfoVO? {
-        val book = bookRepository.findByIsbn(isbn)
-        return book?.let { BookInfoVO.newInstance(it) }
-    }
-
-
     fun save(
-        isbn: String,
+        isbn13: String,
         title: String,
         author: String,
         publisher: String,
@@ -55,12 +49,12 @@ class BookDomainService(
         publicationYear: Int? = null,
         description: String? = null,
     ): BookInfoVO {
-        if (bookRepository.existsByIsbn(isbn)) {
+        if (bookRepository.existsByIsbn13(isbn13)) {
             throw BookAlreadyExistsException(BookErrorCode.BOOK_ALREADY_EXISTS)
         }
 
         val book = Book.create(
-            isbn = isbn,
+            isbn13 = isbn13,
             title = title,
             author = author,
             publisher = publisher,
@@ -72,4 +66,9 @@ class BookDomainService(
         val savedBook = bookRepository.save(book)
         return BookInfoVO.newInstance(savedBook)
     }
+
+    private fun findByIsbn13OrNull(isbn13: String): BookInfoVO? {
+        val book = bookRepository.findByIsbn13(isbn13)
+        return book?.let { BookInfoVO.newInstance(it) }
+    }
 }
diff --git a/domain/src/main/kotlin/org/yapp/domain/book/BookRepository.kt b/domain/src/main/kotlin/org/yapp/domain/book/BookRepository.kt
index 818a866d..4098166c 100644
--- a/domain/src/main/kotlin/org/yapp/domain/book/BookRepository.kt
+++ b/domain/src/main/kotlin/org/yapp/domain/book/BookRepository.kt
@@ -5,7 +5,7 @@ import java.util.UUID
 interface BookRepository {
     fun findById(id: UUID): Book?
     fun existsById(id: UUID): Boolean
-    fun findByIsbn(isbn: String): Book?
-    fun existsByIsbn(isbn: String): Boolean
+    fun findByIsbn13(isbn13: String): Book?
+    fun existsByIsbn13(isbn13: String): Boolean
     fun save(book: Book): Book
 }
diff --git a/domain/src/main/kotlin/org/yapp/domain/book/vo/BookInfoVO.kt b/domain/src/main/kotlin/org/yapp/domain/book/vo/BookInfoVO.kt
index be497d2c..71229934 100644
--- a/domain/src/main/kotlin/org/yapp/domain/book/vo/BookInfoVO.kt
+++ b/domain/src/main/kotlin/org/yapp/domain/book/vo/BookInfoVO.kt
@@ -4,7 +4,7 @@ import org.yapp.domain.book.Book
 
 data class BookInfoVO private constructor(
     val id: Book.Id,
-    val isbn: Book.Isbn,
+    val isbn13: Book.Isbn13,
     val title: String,
     val author: String,
     val publisher: String,
@@ -24,7 +24,7 @@ data class BookInfoVO private constructor(
         ): BookInfoVO {
             return BookInfoVO(
                 book.id,
-                book.isbn,
+                book.isbn13,
                 book.title,
                 book.author,
                 book.publisher,
diff --git a/domain/src/main/kotlin/org/yapp/domain/userbook/UserBook.kt b/domain/src/main/kotlin/org/yapp/domain/userbook/UserBook.kt
index c44f361a..722b160a 100644
--- a/domain/src/main/kotlin/org/yapp/domain/userbook/UserBook.kt
+++ b/domain/src/main/kotlin/org/yapp/domain/userbook/UserBook.kt
@@ -9,7 +9,7 @@ data class UserBook private constructor(
     val id: Id,
     val userId: UserId,
     val bookId: BookId,
-    val bookIsbn: BookIsbn,
+    val bookIsbn13: BookIsbn13,
     val coverImageUrl: String,
     val publisher: String,
     val title: String,
@@ -28,12 +28,11 @@ data class UserBook private constructor(
         return this.copy(readingRecordCount = this.readingRecordCount + 1)
     }
 
-
     companion object {
         fun create(
             userId: UUID,
             bookId: UUID,
-            bookIsbn: String,
+            bookIsbn13: String,
             coverImageUrl: String,
             publisher: String,
             title: String,
@@ -44,7 +43,7 @@ data class UserBook private constructor(
                 id = Id.newInstance(UuidGenerator.create()),
                 userId = UserId.newInstance(userId),
                 bookId = BookId.newInstance(bookId),
-                bookIsbn = BookIsbn.newInstance(bookIsbn),
+                bookIsbn13 = BookIsbn13.newInstance(bookIsbn13),
                 coverImageUrl = coverImageUrl,
                 publisher = publisher,
                 title = title,
@@ -57,7 +56,7 @@ data class UserBook private constructor(
             id: Id,
             userId: UserId,
             bookId: BookId,
-            bookIsbn: BookIsbn,
+            bookIsbn13: BookIsbn13,
             coverImageUrl: String,
             publisher: String,
             title: String,
@@ -72,7 +71,7 @@ data class UserBook private constructor(
                 id = id,
                 userId = userId,
                 bookId = bookId,
-                bookIsbn = bookIsbn,
+                bookIsbn13 = bookIsbn13,
                 coverImageUrl = coverImageUrl,
                 publisher = publisher,
                 title = title,
@@ -108,11 +107,11 @@ data class UserBook private constructor(
     }
 
     @JvmInline
-    value class BookIsbn(val value: String) {
+    value class BookIsbn13(val value: String) {
         companion object {
-            fun newInstance(value: String): BookIsbn {
-                require(IsbnValidator.isValidIsbn(value)) { "ISBN must be a 10 or 13-digit number." }
-                return BookIsbn(value)
+            fun newInstance(value: String): BookIsbn13 {
+                require(IsbnValidator.isValidIsbn13(value)) { "ISBN13 must be a 13-digit number." }
+                return BookIsbn13(value)
             }
         }
     }
diff --git a/domain/src/main/kotlin/org/yapp/domain/userbook/UserBookDomainService.kt b/domain/src/main/kotlin/org/yapp/domain/userbook/UserBookDomainService.kt
index 3af4aeb7..cb41b205 100644
--- a/domain/src/main/kotlin/org/yapp/domain/userbook/UserBookDomainService.kt
+++ b/domain/src/main/kotlin/org/yapp/domain/userbook/UserBookDomainService.kt
@@ -15,18 +15,18 @@ class UserBookDomainService(
     fun upsertUserBook(
         userId: UUID,
         bookId: UUID,
-        bookIsbn: String,
+        bookIsbn13: String,
         bookTitle: String,
         bookAuthor: String,
         bookPublisher: String,
         bookCoverImageUrl: String,
         status: BookStatus
     ): UserBookInfoVO {
-        val userBook = userBookRepository.findByUserIdAndBookIsbn(userId, bookIsbn)?.updateStatus(status)
+        val userBook = userBookRepository.findByUserIdAndBookIsbn13(userId, bookIsbn13)?.updateStatus(status)
             ?: UserBook.create(
                 userId = userId,
                 bookId = bookId,
-                bookIsbn = bookIsbn,
+                bookIsbn13 = bookIsbn13,
                 title = bookTitle,
                 author = bookAuthor,
                 publisher = bookPublisher,
@@ -49,16 +49,16 @@ class UserBookDomainService(
         return page.map { UserBookInfoVO.newInstance(it, it.readingRecordCount) }
     }
 
-    fun findAllByUserIdAndBookIsbnIn(userId: UUID, isbns: List<String>): List<UserBookInfoVO> {
-        if (isbns.isEmpty()) {
+    fun findAllByUserIdAndBookIsbn13In(userId: UUID, isbn13s: List<String>): List<UserBookInfoVO> {
+        if (isbn13s.isEmpty()) {
             return emptyList()
         }
-        val userBooks = userBookRepository.findAllByUserIdAndBookIsbnIn(userId, isbns)
+        val userBooks = userBookRepository.findAllByUserIdAndBookIsbn13In(userId, isbn13s)
         return userBooks.map { UserBookInfoVO.newInstance(it, it.readingRecordCount) }
     }
 
-    fun findByUserIdAndBookIsbn(userId: UUID, isbn: String): UserBookInfoVO? {
-        val userBook = userBookRepository.findByUserIdAndBookIsbn(userId, isbn)
+    fun findByUserIdAndBookIsbn13(userId: UUID, isbn13: String): UserBookInfoVO? {
+        val userBook = userBookRepository.findByUserIdAndBookIsbn13(userId, isbn13)
         return userBook?.let { UserBookInfoVO.newInstance(it, it.readingRecordCount) }
     }
 
@@ -108,4 +108,4 @@ class UserBookDomainService(
             )
         }
     }
-}
\ No newline at end of file
+}
diff --git a/domain/src/main/kotlin/org/yapp/domain/userbook/UserBookRepository.kt b/domain/src/main/kotlin/org/yapp/domain/userbook/UserBookRepository.kt
index d580b8d7..c60635ee 100644
--- a/domain/src/main/kotlin/org/yapp/domain/userbook/UserBookRepository.kt
+++ b/domain/src/main/kotlin/org/yapp/domain/userbook/UserBookRepository.kt
@@ -7,18 +7,13 @@ import java.util.*
 
 
 interface UserBookRepository {
-
-    fun findByUserIdAndBookIsbn(userId: UUID, isbn: String): UserBook?
+    fun findByUserIdAndBookIsbn13(userId: UUID, isbn13: String): UserBook?
     fun findByBookIdAndUserId(bookId: UUID, userId: UUID): UserBook?
     fun existsByIdAndUserId(id: UUID, userId: UUID): Boolean
     fun findById(id: UUID): UserBook?
-
     fun save(userBook: UserBook): UserBook
-
     fun findAllByUserId(userId: UUID): List<UserBook>
-
-    fun findAllByUserIdAndBookIsbnIn(userId: UUID, bookIsbns: List<String>): List<UserBook>
-
+    fun findAllByUserIdAndBookIsbn13In(userId: UUID, bookIsbn13s: List<String>): List<UserBook>
     fun findUserBooksByDynamicCondition(
         userId: UUID,
         status: BookStatus?,
@@ -36,6 +31,4 @@ interface UserBookRepository {
         limit: Int,
         excludeIds: Set<UUID>
     ): List<UserBook>
-
-    
 }
diff --git a/domain/src/main/kotlin/org/yapp/domain/userbook/vo/HomeBookVO.kt b/domain/src/main/kotlin/org/yapp/domain/userbook/vo/HomeBookVO.kt
index 8785a452..84ba184a 100644
--- a/domain/src/main/kotlin/org/yapp/domain/userbook/vo/HomeBookVO.kt
+++ b/domain/src/main/kotlin/org/yapp/domain/userbook/vo/HomeBookVO.kt
@@ -8,7 +8,7 @@ data class HomeBookVO private constructor(
     val id: UserBook.Id,
     val userId: UserBook.UserId,
     val bookId: UserBook.BookId,
-    val bookIsbn: UserBook.BookIsbn,
+    val bookIsbn13: UserBook.BookIsbn13,
     val coverImageUrl: String,
     val publisher: String,
     val title: String,
@@ -40,7 +40,7 @@ data class HomeBookVO private constructor(
                 id = userBook.id,
                 userId = userBook.userId,
                 bookId = userBook.bookId,
-                bookIsbn = userBook.bookIsbn,
+                bookIsbn13 = userBook.bookIsbn13,
                 coverImageUrl = userBook.coverImageUrl,
                 publisher = userBook.publisher,
                 title = userBook.title,
diff --git a/domain/src/main/kotlin/org/yapp/domain/userbook/vo/UserBookInfoVO.kt b/domain/src/main/kotlin/org/yapp/domain/userbook/vo/UserBookInfoVO.kt
index 019bb07a..c5e7647b 100644
--- a/domain/src/main/kotlin/org/yapp/domain/userbook/vo/UserBookInfoVO.kt
+++ b/domain/src/main/kotlin/org/yapp/domain/userbook/vo/UserBookInfoVO.kt
@@ -8,7 +8,7 @@ data class UserBookInfoVO private constructor(
     val id: UserBook.Id,
     val userId: UserBook.UserId,
     val bookId: UserBook.BookId,
-    val bookIsbn: UserBook.BookIsbn,
+    val bookIsbn13: UserBook.BookIsbn13,
     val coverImageUrl: String,
     val publisher: String,
     val title: String,
@@ -38,7 +38,7 @@ data class UserBookInfoVO private constructor(
                 id = userBook.id,
                 userId = userBook.userId,
                 bookId = userBook.bookId,
-                bookIsbn = userBook.bookIsbn,
+                bookIsbn13 = userBook.bookIsbn13,
                 coverImageUrl = userBook.coverImageUrl,
                 publisher = userBook.publisher,
                 title = userBook.title,
diff --git a/global-utils/src/main/kotlin/org/yapp/globalutils/validator/IsbnValidator.kt b/global-utils/src/main/kotlin/org/yapp/globalutils/validator/IsbnValidator.kt
index ab55042a..3843f218 100644
--- a/global-utils/src/main/kotlin/org/yapp/globalutils/validator/IsbnValidator.kt
+++ b/global-utils/src/main/kotlin/org/yapp/globalutils/validator/IsbnValidator.kt
@@ -6,7 +6,11 @@ object IsbnValidator {
     private val ISBN10_REGEX = Regex(RegexUtils.ISBN10_PATTERN)
     private val ISBN13_REGEX = Regex(RegexUtils.ISBN13_PATTERN)
 
-    fun isValidIsbn(isbn: String): Boolean {
-        return isbn.matches(ISBN10_REGEX) || isbn.matches(ISBN13_REGEX)
+    fun isValidIsbn10(isbn: String): Boolean {
+        return isbn.matches(ISBN10_REGEX)
+    }
+
+    fun isValidIsbn13(isbn: String): Boolean {
+        return isbn.matches(ISBN13_REGEX)
     }
 }
diff --git a/infra/src/main/kotlin/org/yapp/infra/book/entity/BookEntity.kt b/infra/src/main/kotlin/org/yapp/infra/book/entity/BookEntity.kt
index 382dc14a..a0864f31 100644
--- a/infra/src/main/kotlin/org/yapp/infra/book/entity/BookEntity.kt
+++ b/infra/src/main/kotlin/org/yapp/infra/book/entity/BookEntity.kt
@@ -10,7 +10,7 @@ import org.hibernate.annotations.SQLRestriction
 import org.yapp.domain.book.Book
 import org.yapp.infra.common.BaseTimeEntity
 import java.sql.Types
-import java.util.UUID
+import java.util.*
 
 @Entity
 @Table(name = "books")
@@ -23,7 +23,7 @@ class BookEntity private constructor(
     val id: UUID,
 
     @Column(length = 13, updatable = false, nullable = false, unique = true)
-    val isbn: String,
+    val isbn13: String,
 
     title: String,
     author: String,
@@ -57,10 +57,9 @@ class BookEntity private constructor(
     var description: String? = description
         protected set
 
-
     fun toDomain(): Book = Book.reconstruct(
         id = Book.Id.newInstance(this.id),
-        isbn = Book.Isbn.newInstance(this.isbn),
+        isbn13 = Book.Isbn13.newInstance(this.isbn13),
         title = title,
         author = author,
         publisher = publisher,
@@ -75,7 +74,7 @@ class BookEntity private constructor(
     companion object {
         fun fromDomain(book: Book): BookEntity = BookEntity(
             id = book.id.value,
-            isbn = book.isbn.value,
+            isbn13 = book.isbn13.value,
             title = book.title,
             author = book.author,
             publisher = book.publisher,
diff --git a/infra/src/main/kotlin/org/yapp/infra/book/repository/JpaBookRepository.kt b/infra/src/main/kotlin/org/yapp/infra/book/repository/JpaBookRepository.kt
index 25006647..b76e4dff 100644
--- a/infra/src/main/kotlin/org/yapp/infra/book/repository/JpaBookRepository.kt
+++ b/infra/src/main/kotlin/org/yapp/infra/book/repository/JpaBookRepository.kt
@@ -9,6 +9,6 @@ import org.yapp.infra.book.entity.BookEntity
 import java.util.UUID
 
 interface JpaBookRepository : JpaRepository<BookEntity, UUID> {
-    fun findByIsbn(isbn: String): BookEntity?
-    fun existsByIsbn(isbn: String): Boolean
+    fun findByIsbn13(isbn13: String): BookEntity?
+    fun existsByIsbn13(isbn13: String): Boolean
 }
diff --git a/infra/src/main/kotlin/org/yapp/infra/book/repository/impl/BookRepositoryImpl.kt b/infra/src/main/kotlin/org/yapp/infra/book/repository/impl/BookRepositoryImpl.kt
index a4c69541..8b7ce0da 100644
--- a/infra/src/main/kotlin/org/yapp/infra/book/repository/impl/BookRepositoryImpl.kt
+++ b/infra/src/main/kotlin/org/yapp/infra/book/repository/impl/BookRepositoryImpl.kt
@@ -20,12 +20,12 @@ class BookRepositoryImpl(
         return jpaBookRepository.existsById(id)
     }
 
-    override fun findByIsbn(isbn: String): Book? {
-        return jpaBookRepository.findByIsbn(isbn)?.toDomain()
+    override fun findByIsbn13(isbn13: String): Book? {
+        return jpaBookRepository.findByIsbn13(isbn13)?.toDomain()
     }
 
-    override fun existsByIsbn(isbn: String): Boolean {
-        return jpaBookRepository.existsByIsbn(isbn)
+    override fun existsByIsbn13(isbn13: String): Boolean {
+        return jpaBookRepository.existsByIsbn13(isbn13)
     }
 
     override fun save(book: Book): Book {
diff --git a/infra/src/main/kotlin/org/yapp/infra/external/aladin/request/AladinBookLookupRequest.kt b/infra/src/main/kotlin/org/yapp/infra/external/aladin/request/AladinBookLookupRequest.kt
index a0575fc2..08196c3b 100644
--- a/infra/src/main/kotlin/org/yapp/infra/external/aladin/request/AladinBookLookupRequest.kt
+++ b/infra/src/main/kotlin/org/yapp/infra/external/aladin/request/AladinBookLookupRequest.kt
@@ -17,10 +17,10 @@ data class AladinBookLookupRequest private constructor(
 
     companion object {
         fun from(
-            itemId: String,
+            isbn13: String,
         ): AladinBookLookupRequest {
             return AladinBookLookupRequest(
-                itemId = itemId,
+                itemId = isbn13,
                 itemIdType = "ISBN13",
                 cover = BookCoverSize.BIG.apiValue
             )
diff --git a/infra/src/main/kotlin/org/yapp/infra/userbook/entity/UserBookEntity.kt b/infra/src/main/kotlin/org/yapp/infra/userbook/entity/UserBookEntity.kt
index 81ab204c..f80e9d58 100644
--- a/infra/src/main/kotlin/org/yapp/infra/userbook/entity/UserBookEntity.kt
+++ b/infra/src/main/kotlin/org/yapp/infra/userbook/entity/UserBookEntity.kt
@@ -4,10 +4,9 @@ import jakarta.persistence.*
 import org.hibernate.annotations.JdbcTypeCode
 import org.hibernate.annotations.SQLDelete
 import org.hibernate.annotations.SQLRestriction
-import jakarta.persistence.Index
-import org.yapp.infra.common.BaseTimeEntity
 import org.yapp.domain.userbook.BookStatus
 import org.yapp.domain.userbook.UserBook
+import org.yapp.infra.common.BaseTimeEntity
 import java.sql.Types
 import java.util.*
 
@@ -35,8 +34,8 @@ class UserBookEntity(
     @JdbcTypeCode(Types.VARCHAR)
     val bookId: UUID,
 
-    @Column(name = "book_isbn", nullable = false)
-    val bookIsbn: String,
+    @Column(name = "book_isbn13", nullable = false, unique = true)
+    val bookIsbn13: String,
 
     coverImageUrl: String,
     publisher: String,
@@ -74,7 +73,7 @@ class UserBookEntity(
         id = UserBook.Id.newInstance(this.id),
         userId = UserBook.UserId.newInstance(this.userId),
         bookId = UserBook.BookId.newInstance(this.bookId),
-        bookIsbn = UserBook.BookIsbn.newInstance(this.bookIsbn),
+        bookIsbn13 = UserBook.BookIsbn13.newInstance(this.bookIsbn13),
         coverImageUrl = this.coverImageUrl,
         publisher = this.publisher,
         title = this.title,
@@ -92,7 +91,7 @@ class UserBookEntity(
                 id = userBook.id.value,
                 userId = userBook.userId.value,
                 bookId = userBook.bookId.value,
-                bookIsbn = userBook.bookIsbn.value,
+                bookIsbn13 = userBook.bookIsbn13.value,
                 coverImageUrl = userBook.coverImageUrl,
                 publisher = userBook.publisher,
                 title = userBook.title,
diff --git a/infra/src/main/kotlin/org/yapp/infra/userbook/repository/JpaUserBookRepository.kt b/infra/src/main/kotlin/org/yapp/infra/userbook/repository/JpaUserBookRepository.kt
index c63fee6b..6db7d51b 100644
--- a/infra/src/main/kotlin/org/yapp/infra/userbook/repository/JpaUserBookRepository.kt
+++ b/infra/src/main/kotlin/org/yapp/infra/userbook/repository/JpaUserBookRepository.kt
@@ -5,9 +5,9 @@ import org.yapp.infra.userbook.entity.UserBookEntity
 import java.util.*
 
 interface JpaUserBookRepository : JpaRepository<UserBookEntity, UUID>, JpaUserBookQuerydslRepository {
-    fun findByUserIdAndBookIsbn(userId: UUID, bookIsbn: String): UserBookEntity?
+    fun findByUserIdAndBookIsbn13(userId: UUID, bookIsbn13: String): UserBookEntity?
     fun findByBookIdAndUserId(bookId: UUID, userId: UUID): UserBookEntity?
     fun existsByIdAndUserId(id: UUID, userId: UUID): Boolean
     fun findAllByUserId(userId: UUID): List<UserBookEntity>
-    fun findAllByUserIdAndBookIsbnIn(userId: UUID, bookIsbnList: List<String>): List<UserBookEntity>
+    fun findAllByUserIdAndBookIsbn13In(userId: UUID, bookIsbn13List: List<String>): List<UserBookEntity>
 }
diff --git a/infra/src/main/kotlin/org/yapp/infra/userbook/repository/impl/UserBookRepositoryImpl.kt b/infra/src/main/kotlin/org/yapp/infra/userbook/repository/impl/UserBookRepositoryImpl.kt
index 41302f8e..08bbffb4 100644
--- a/infra/src/main/kotlin/org/yapp/infra/userbook/repository/impl/UserBookRepositoryImpl.kt
+++ b/infra/src/main/kotlin/org/yapp/infra/userbook/repository/impl/UserBookRepositoryImpl.kt
@@ -17,8 +17,8 @@ class UserBookRepositoryImpl(
     private val jpaUserBookRepository: JpaUserBookRepository
 ) : UserBookRepository {
 
-    override fun findByUserIdAndBookIsbn(userId: UUID, isbn: String): UserBook? {
-        return jpaUserBookRepository.findByUserIdAndBookIsbn(userId, isbn)?.toDomain()
+    override fun findByUserIdAndBookIsbn13(userId: UUID, isbn13: String): UserBook? {
+        return jpaUserBookRepository.findByUserIdAndBookIsbn13(userId, isbn13)?.toDomain()
     }
 
     override fun findByBookIdAndUserId(bookId: UUID, userId: UUID): UserBook? {
@@ -42,11 +42,11 @@ class UserBookRepositoryImpl(
         return jpaUserBookRepository.findAllByUserId(userId).map { it.toDomain() }
     }
 
-    override fun findAllByUserIdAndBookIsbnIn(
+    override fun findAllByUserIdAndBookIsbn13In(
         userId: UUID,
         bookIsbns: List<String>
     ): List<UserBook> {
-        return jpaUserBookRepository.findAllByUserIdAndBookIsbnIn(userId, bookIsbns)
+        return jpaUserBookRepository.findAllByUserIdAndBookIsbn13In(userId, bookIsbns)
             .map { it.toDomain() }
     }