The idea behind this book is that you can relieve pain by normalizing your body's posture and movement. Likewise, the book's premise is that chronic pain is the result of imbalances in your body.
The cure? Exercises called "E-cises" that aim to get your body lined up properly and moving normally. All major areas of the body are covered such as the hips, knees, ankles, back, and so on.
I recommend this book for chronic pain sufferers- even if the theory of the book is incorrect, it will get you exercising which has been shown to help fight chronic pain. Foot pain sufferers might also find The 5-Minute Plantar Fasciitis Solution
helpful as well.