@mayblin Correction "Back Mechanic" no "The". I want to add that this is a very practical book. It's not best seller flashy. I had read interviews with McGill and watched free youtube stuff with him or others describing his exercises and I'd been to physical therapists and chiropractors that gave me some of his exercises to do but none of that gave me what I needed.
Back Mechanic describes McGill's view of how back pain works and how to move and think with that in mind. That helped me right away before I was even doing the exercises. I had had 40 years of low back - hip trouble prior to that which nothing had helped significantly. His view of how pain works and what to do based on that, worked! So yeah, I'm a big fan.