I’ve been doing keto for 20 years. Here are some books that I highly recommend:

Ketocontinuum: Consistently Keto Diet for Life — Don’t read Any Way You Can. This one is better. She has an excellent YouTube channel.

Good Calories, Bad Calories: Fats, Carbs, and the Controversial Science of Diet and Health — This is essential reading as a precursor to the keto rabbit hole. It is a well researched tome about the history of dieting.

The Art and Science of Low Carbohydrate Performance - Well researched book on how to optimize keto for running.

The Ketogenic Diet: A Complete Guide for the Dieter and Practitioner - A very early and thorough manual to keto with lots of information on how to grow muscle mass.

Born to Run: A Hidden Tribe, Superathletes, and the Greatest Race the World Has Never Seen - An inspiring book on running. It doesn’t touch upon keto per se, however it is apparent to me that the Iskiate / Chia Fresca is fairly keto.