Michael Abrash's Graphics Programming Black Book is still one of my all time favourite. What they did back then was almost black magic. I learned a good part of maths, cs and physics trying to mod id1 with this book during my teenaghood.

Shoutout to https://www.jagregory.com/abrash-black-book/

The tech specifics covered have been out of use for decades. But, it's still a very fun read about thinking through the process of optimization.