This inspired me. What's the best book for modern prolog?
https://mitpress.mit.edu/books/thinking-computation
Other books I have but haven't gone through yet are Adventure in Prolog and The Art of Prolog.
https://mitpress.mit.edu/books/art-prolog-second-edition
The only thing I'm wondering about are skipping any important developments made in the last 25 years, but I guess I can always jump into the more up-to-date online resources by then.
AFAIK the biggest item that’s missing is constraint logic programming. Markus Triska discusses CLP in his Power of Prolog book.