Tie each case study to two-ish practical vertical-focused use cases. For example, for the server log chapter, describe application to ad tech conversion metrics and simple security intrusion detection.
These will typically be in the form of end-of-chapter examples (sketch of the solution and how you'd approach it, but not the solution itself; readership hopefully provides).
/cc @dhruvbansal @joeman @timgasper -- super practical hardnosed use cases invited