- This book covers all theoretical endgames from 0-master level so it has info for every player
It is split up into player classes such as beginner (0-1000), class E (1000-1199), etc
Silman recommends reading your current level and mastering the endgames and only maybe going one level above yours and then dropping the book and working on other aspects of your game until you improve
I just read the class E section and realized as a 1700 player that I actually didn't know the actual book theory to a queen vs bishop endgame or queen vs knight. I always tried to find a fork but thats not actually necessary. So even higher level players can learn lots here
Also on Lichess you can find these book puzzles and practice on the app for free! Obviously it won't have all the annotations because that would be completely stealing his work but you can practice all the ideas