diff --git a/pom.xml b/pom.xml
index 922b9c237..3d2fab699 100644
--- a/pom.xml
+++ b/pom.xml
@@ -37,6 +37,11 @@
             <artifactId>spring-boot-starter-test</artifactId>
             <scope>test</scope>
         </dependency>
+        <dependency>
+            <groupId>jakarta.persistence</groupId>
+            <artifactId>jakarta.persistence-api</artifactId>
+            <version>3.1.0</version>
+        </dependency>
     </dependencies>
 
     <build>
@@ -45,6 +50,14 @@
                 <groupId>org.springframework.boot</groupId>
                 <artifactId>spring-boot-maven-plugin</artifactId>
             </plugin>
+            <plugin>
+                <groupId>org.apache.maven.plugins</groupId>
+                <artifactId>maven-compiler-plugin</artifactId>
+                <configuration>
+                    <source>16</source>
+                    <target>16</target>
+                </configuration>
+            </plugin>
         </plugins>
     </build>
     <repositories>
diff --git a/src/main/java/guru/springframework/spring6webapp/bootstrap/BootstrapData.java b/src/main/java/guru/springframework/spring6webapp/bootstrap/BootstrapData.java
new file mode 100644
index 000000000..e8eb22a5e
--- /dev/null
+++ b/src/main/java/guru/springframework/spring6webapp/bootstrap/BootstrapData.java
@@ -0,0 +1,89 @@
+package guru.springframework.spring6webapp.bootstrap;
+
+import guru.springframework.spring6webapp.domain.Author;
+import guru.springframework.spring6webapp.domain.Book;
+import guru.springframework.spring6webapp.domain.Publisher;
+import guru.springframework.spring6webapp.repositories.IAuthorRepositroy;
+import guru.springframework.spring6webapp.repositories.IBookRepository;
+import guru.springframework.spring6webapp.repositories.IPublisherRepository;
+import org.springframework.boot.CommandLineRunner;
+import org.springframework.stereotype.Component;
+
+@Component // This annotation indicates that this class is a Spring component and will be automatically detected by Spring's component scanning
+public class BootstrapData implements CommandLineRunner {
+
+    private final IAuthorRepositroy iAuthorRepositroy;
+    private final IBookRepository iBookRepository;
+    private final IPublisherRepository iPublisherRepository;
+
+    public BootstrapData(IAuthorRepositroy iAuthorRepositroy, IBookRepository iBookRepository, IPublisherRepository iPublisherRepository) {
+        this.iAuthorRepositroy = iAuthorRepositroy;
+        this.iBookRepository = iBookRepository;
+        this.iPublisherRepository = iPublisherRepository;
+    }
+
+
+    @Override
+    public void run(String... args) throws Exception {
+
+        Author nabil = new Author(); // Create a new Author object
+        nabil.setFirstName("Nabil");
+        nabil.setLastName("Boutachrafine");
+
+        Book b_spring_f6 = new Book(); // Create a new Book object
+        b_spring_f6.setTitle("Spring Framework 6");
+        b_spring_f6.setIsbn("1234567890");
+
+        Publisher springPublisher = new Publisher(); // Create a new Publisher object
+        springPublisher.setPublisherName("Spring Books");
+        springPublisher.setPublisherAddress("123 Spring St");
+        springPublisher.setPublisherCity("Springfield");
+        springPublisher.setPublisherState("Spring State");
+        springPublisher.setPublisherZip("12345");
+
+        Author savedNabil = iAuthorRepositroy.save(nabil); // Save the Author object to the repository
+        Book savedBookSpring6 = iBookRepository.save(b_spring_f6); // Save the Book object to the repository
+        Publisher savedSpringPublisher = iPublisherRepository.save(springPublisher); // Save the Publisher object to the repository
+
+        Author tawfiq = new Author();
+        tawfiq.setFirstName("Tawfiq");
+        tawfiq.setLastName("Boutachrafine");
+
+        Book book_java = new Book();
+        book_java.setTitle("Java Programming");
+        book_java.setIsbn("0987654321");
+
+        Publisher javaPublisher = new Publisher();
+        javaPublisher.setPublisherName("Java Books");
+        javaPublisher.setPublisherAddress("456 Java Ave");
+        javaPublisher.setPublisherCity("Java City");
+        javaPublisher.setPublisherState("Java State");
+        javaPublisher.setPublisherZip("67890");
+
+        Author savedTawfiq = iAuthorRepositroy.save(tawfiq); // Save the second Author object
+        Book savedBookJava = iBookRepository.save(book_java); // Save the second Book object
+        Publisher savedJavaPublisher = iPublisherRepository.save(javaPublisher); // Save the first Publisher object
+
+        savedNabil.getBooks().add(savedBookSpring6); // Add the first book to the first author
+        savedTawfiq.getBooks().add(savedBookJava); // Add the second book to the second author
+
+        savedBookSpring6.setPublisher(javaPublisher); // Set the publisher for the first book
+        savedBookJava.setPublisher(savedSpringPublisher); // Set the publisher for the second book
+
+        iAuthorRepositroy.save(savedNabil); // Save the updated first author
+        iAuthorRepositroy.save(savedTawfiq); // Save the updated second author
+        iBookRepository.save(savedBookSpring6); // Save the updated first book
+        iBookRepository.save(savedBookJava); // Save the updated second book
+
+        System.out.println("Bootstrap Data Loaded");
+        System.out.println("Number of Authors: " + iAuthorRepositroy.count());
+        System.out.println("Number of Books: " + iBookRepository.count());
+        System.out.println("Number of Publishers: " + iPublisherRepository.count());
+    }
+}
+
+
+
+
+
+
diff --git a/src/main/java/guru/springframework/spring6webapp/domain/Author.java b/src/main/java/guru/springframework/spring6webapp/domain/Author.java
new file mode 100644
index 000000000..a60b50faf
--- /dev/null
+++ b/src/main/java/guru/springframework/spring6webapp/domain/Author.java
@@ -0,0 +1,78 @@
+package guru.springframework.spring6webapp.domain;
+
+import jakarta.persistence.*;
+
+import java.util.HashSet;
+import java.util.Objects;
+import java.util.Set;
+
+@Entity // this annotation indicates that this class is a JPA entity
+public class Author {
+    @Id // This annotation indicates that this field is the primary key of the entity
+    @GeneratedValue (strategy = GenerationType.AUTO) // this annotation specifies that the primary key will be generated automatically
+    private Long idAuthor;
+    private String firstName;
+    private String lastName;
+
+    @ManyToMany(mappedBy = "authors") // this annotation indicates a many-to-many relationship with the Book entity
+    private Set<Book> books = new HashSet<>();
+
+    public Long getIdAuthor() {
+        return idAuthor;
+    }
+
+    public void setIdAuthor(Long idAuthor) {
+        this.idAuthor = idAuthor;
+    }
+
+    public String getFirstName() {
+        return firstName;
+    }
+
+    public void setFirstName(String firstName) {
+        this.firstName = firstName;
+    }
+
+    public String getLastName() {
+        return lastName;
+    }
+
+    public void setLastName(String lastName) {
+        this.lastName = lastName;
+    }
+
+    public Set<Book> getBooks() {
+        return books;
+    }
+
+    public void setBooks(Set<Book> books) {
+        this.books = books;
+    }
+
+    @Override
+    public String toString() {
+        return "Author{" +
+                "idAuthor=" + idAuthor +
+                ", firstName='" + firstName + '\'' +
+                ", lastName='" + lastName + '\'' +
+                '}';
+    }
+
+    @Override
+    public final boolean equals(Object o) {
+        if (!(o instanceof Author author)) return false;
+
+        return Objects.equals(getIdAuthor(), author.getIdAuthor());
+    }
+
+    @Override
+    public int hashCode() {
+        return Objects.hashCode(getIdAuthor());
+    }
+
+}
+
+
+
+
+
diff --git a/src/main/java/guru/springframework/spring6webapp/domain/Book.java b/src/main/java/guru/springframework/spring6webapp/domain/Book.java
new file mode 100644
index 000000000..332d996a8
--- /dev/null
+++ b/src/main/java/guru/springframework/spring6webapp/domain/Book.java
@@ -0,0 +1,90 @@
+package guru.springframework.spring6webapp.domain;
+
+import jakarta.persistence.*;
+
+import java.util.HashSet;
+import java.util.Objects;
+import java.util.Set;
+
+@Entity
+public class Book {
+    @Id
+    @GeneratedValue(strategy = GenerationType.AUTO)
+    private Long idBook;
+    private String title;
+    private String isbn;
+
+    @ManyToMany
+    @JoinTable(name ="author_book", joinColumns = @JoinColumn(name = "book_id"),
+    inverseJoinColumns = @JoinColumn(name = "author_id")) // This annotation defines the join table for the many-to-many relationship
+    private Set<Author> authors = new HashSet<>();
+
+    @ManyToOne
+    private Publisher publisher;
+
+    public Publisher getPublisher() {
+        return publisher;
+    }
+
+    public void setPublisher(Publisher publisher) {
+        this.publisher = publisher;
+    }
+
+    public Long getIdBook() {
+        return idBook;
+    }
+
+    public void setIdBook(Long idBook) {
+        this.idBook = idBook;
+    }
+
+    public String getTitle() {
+        return title;
+    }
+
+    public void setTitle(String title) {
+        this.title = title;
+    }
+
+    public String getIsbn() {
+        return isbn;
+    }
+
+    public void setIsbn(String isbn) {
+        this.isbn = isbn;
+    }
+
+    public Set<Author> getAuthors() {
+        return authors;
+    }
+
+    public void setAuthors(Set<Author> authors) {
+        this.authors = authors;
+    }
+
+    @Override
+    public String toString() {
+        return "Book{" +
+                "idBook=" + idBook +
+                ", title='" + title + '\'' +
+                ", isbn='" + isbn + '\'' +
+                '}';
+    }
+
+    @Override
+    public final boolean equals(Object o) {
+        if (!(o instanceof Book book)) return false;
+
+        return Objects.equals(getIdBook(), book.getIdBook());
+    }
+
+    @Override
+    public int hashCode() {
+        return Objects.hashCode(getIdBook());
+    }
+
+}
+
+
+
+
diff --git a/src/main/java/guru/springframework/spring6webapp/domain/Publisher.java b/src/main/java/guru/springframework/spring6webapp/domain/Publisher.java
new file mode 100644
index 000000000..3d0469762
--- /dev/null
+++ b/src/main/java/guru/springframework/spring6webapp/domain/Publisher.java
@@ -0,0 +1,94 @@
+package guru.springframework.spring6webapp.domain;
+
+import jakarta.persistence.*;
+
+import java.util.Objects;
+import java.util.Set;
+
+@Entity
+public class Publisher {
+
+    @Id
+    @GeneratedValue(strategy = GenerationType.AUTO)
+    private Long idPublisher;
+    private String publisherName;
+    private String publisherAddress;
+    private String publisherCity;
+    private String publisherState;
+    private String publisherZip;
+
+    @OneToMany(mappedBy = "publisher")
+    private Set<Book> books;
+
+    public Long getIdPublisher() {
+        return idPublisher;
+    }
+
+    public void setIdPublisher(Long idPublisher) {
+        this.idPublisher = idPublisher;
+    }
+
+    public String getPublisherName() {
+        return publisherName;
+    }
+
+    public void setPublisherName(String publisherName) {
+        this.publisherName = publisherName;
+    }
+
+    public String getPublisherAddress() {
+        return publisherAddress;
+    }
+
+    public void setPublisherAddress(String publisherAddress) {
+        this.publisherAddress = publisherAddress;
+    }
+
+    public String getPublisherCity() {
+        return publisherCity;
+    }
+
+    public void setPublisherCity(String publisherCity) {
+        this.publisherCity = publisherCity;
+    }
+
+    public String getPublisherState() {
+        return publisherState;
+    }
+
+    public void setPublisherState(String publisherState) {
+        this.publisherState = publisherState;
+    }
+
+    public String getPublisherZip() {
+        return publisherZip;
+    }
+
+    public void setPublisherZip(String publisherZip) {
+        this.publisherZip = publisherZip;
+    }
+
+    @Override
+    public String toString() {
+        return "Publisher{" +
+                "idPublisher=" + idPublisher +
+                ", publisherName='" + publisherName + '\'' +
+                ", publisherAddress='" + publisherAddress + '\'' +
+                ", publisherCity='" + publisherCity + '\'' +
+                ", publisherState='" + publisherState + '\'' +
+                ", publisherZip='" + publisherZip + '\'' +
+                '}';
+    }
+
+    @Override
+    public final boolean equals(Object o) {
+        if (!(o instanceof Publisher publisher)) return false;
+
+        return Objects.equals(getIdPublisher(), publisher.getIdPublisher());
+    }
+
+    @Override
+    public int hashCode() {
+        return Objects.hashCode(getIdPublisher());
+    }
+}
diff --git a/src/main/java/guru/springframework/spring6webapp/repositories/IAuthorRepositroy.java b/src/main/java/guru/springframework/spring6webapp/repositories/IAuthorRepositroy.java
new file mode 100644
index 000000000..3b57b6ae6
--- /dev/null
+++ b/src/main/java/guru/springframework/spring6webapp/repositories/IAuthorRepositroy.java
@@ -0,0 +1,8 @@
+package guru.springframework.spring6webapp.repositories;
+
+import guru.springframework.spring6webapp.domain.Author;
+import org.springframework.data.repository.CrudRepository;
+
+public interface IAuthorRepositroy extends CrudRepository<Author, Long> {
+
+}
diff --git a/src/main/java/guru/springframework/spring6webapp/repositories/IBookRepository.java b/src/main/java/guru/springframework/spring6webapp/repositories/IBookRepository.java
new file mode 100644
index 000000000..c6c3e9a64
--- /dev/null
+++ b/src/main/java/guru/springframework/spring6webapp/repositories/IBookRepository.java
@@ -0,0 +1,7 @@
+package guru.springframework.spring6webapp.repositories;
+
+import guru.springframework.spring6webapp.domain.Book;
+import org.springframework.data.repository.CrudRepository;
+
+public interface IBookRepository extends CrudRepository<Book, Long> {
+}
diff --git a/src/main/java/guru/springframework/spring6webapp/repositories/IPublisherRepository.java b/src/main/java/guru/springframework/spring6webapp/repositories/IPublisherRepository.java
new file mode 100644
index 000000000..42d8db727
--- /dev/null
+++ b/src/main/java/guru/springframework/spring6webapp/repositories/IPublisherRepository.java
@@ -0,0 +1,7 @@
+package guru.springframework.spring6webapp.repositories;
+
+import guru.springframework.spring6webapp.domain.Publisher;
+import org.springframework.data.repository.CrudRepository;
+
+public interface IPublisherRepository extends CrudRepository<Publisher, Long> {
+}
diff --git a/src/main/resources/application.properties b/src/main/resources/application.properties
index 8b1378917..642fb429b 100644
--- a/src/main/resources/application.properties
+++ b/src/main/resources/application.properties
@@ -1 +1,2 @@
-
+server.port=9090
+//spring.jpa.open-in-view=false
\ No newline at end of file
diff --git a/web/WEB-INF/web.xml b/web/WEB-INF/web.xml
new file mode 100644
index 000000000..d80081d13
--- /dev/null
+++ b/web/WEB-INF/web.xml
@@ -0,0 +1,6 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<web-app xmlns="http://xmlns.jcp.org/xml/ns/javaee"
+         xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+         xsi:schemaLocation="http://xmlns.jcp.org/xml/ns/javaee http://xmlns.jcp.org/xml/ns/javaee/web-app_4_0.xsd"
+         version="4.0">
+</web-app>
\ No newline at end of file