I highly recommend this book to all my clients who have poor posture. It is a simple adjustment in how we sit, stand, walk, bend over, and sleep. This book is so well illustrated, that you can follow along and change your posture with a little help by studying the pictures. I also include it as part of my massage because posture really affects our back and necks, legs and arms. I love teaching people how to change the way they sit, at work or while driving or watching TV at home. I sleep so much more comfortably now. A friend recently had knee surgery and she used this book to help her learn to walk again. It has helped me tremendously and my clients too. So, to really get to the bottom of chronic back pain and how to alleviate it with a few simple steps, check this out.