Over the years I've found the following CS books helpful, but only a minority in my day-to-day work. Your mileage may vary, as would the utility of these to you.

Algorithms -> Algorithms + Data Structures = Programs by Wirth (worth its weight in gold if you can get past the Pascal syntax)

OS -> Operating System Concepts by Silberschatz et al (The dinosaur book)

CS Theory -> Introduction to Automata Theory, Languages, and Computation by Hopcroft, Ullman

Programming Languages Theory -> Programming languages: design and implementation by Pratt et al

Database Theory -> Database Design by Wiederhold

Architecture -> Structured Computer Organization by Andrew S Tanenbaum