Reddit reviews Putting Out Of Your Mind

Seconded. I have read another of Rotella's books, Putting Out of Your Mind. It is very informative, has great stories (Hal Sutton's is the one i remember most) and good drills.

However, the #1 golf book I have read is The Inner Game of Golf by Tim Gallwey. It changed the entire way I look at the game, and made it much more enjoyable - not only because it lowered my scores, but also because it changed the goal of each shot, from trying to hit it perfectly (and wondering if you can), to letting yourself hit it perfectly (because you know you can). The book explains it much better than I can. Nowadays I pick it up every couple weeks and read a few pages, and it's like that secret water in Space Jam - instant results.