What kind of developer? I'm going to be mighty displeased if I get a book about using Oracle products, but many other people would be dismayed to receive a book

What kind of developer? I'm going to be mighty displeased if I get a book about using Oracle products, but many other people would be dismayed to receive a book about writing parser combinators in Haskell. This seems far too general to make anyone happy. You may need to specialize a bit more. Is this a box with stuff for web developers, academic types, low-level programmers, etc?