[a_techwriter_00]

Euclid's Elements. I was gifted at most everything language-related in school, but I was complete dogshit at math. Studying Euclid changed my entire perspective. I don't think I'd have had the self-belief to do programming without having read it.

[ararar]

There is a nice reproduction of Byrne's colorful take on the first six books of the Elements.See https://www.c82.net/euclid/ .