Cherrypicker,
Actually, you bring up a very good question.
"Pain Free" is a good book for the average person who knows nothing about posture therapy to get some background info. It is excellent MARKETING. It outsells his other books by a longshot. It outsells "Health Through Motion" even though the general idea of the content is the same. The testimonials/stories in the book are people who were personally work on by Pete and if you are fortunate enough to work with him, you will get better (he doesn't really work on people anymore, except celebrities and very wealthy people).
With posture therapy, there truly is no such thing as specific exercises for back pain or exercises for neck pain, etc..., etc.... However, Pete does divide his book into those body part sections. The reason he did that is because that is now most people think. If you look at the exercises he shows for the various sections, it's the same exercises over and over. With the exercises that he is showing that book, I see what he is generally trying to do, however, I do not see any logic to the sequencing or how he could possibly classify those sequences into body part sections.
One quick side note is that I have yet to meet anyone who has done the exercises in Pete's various books perfectly correct. So many people say, "Yeah, I've seen those exercises before", but when I watch them do it, they are missing a lot of details. Of course, the book is also not super descriptive in talking about all the small details. Those small details make a very big difference.
Since everyone problems are caused by different issue, Pain Free is like the shotgun approach. I can tell that it is the shotgun approach by the exercise he chose to show in the book. As I mentioned before, many people are so dysfunctional that giving them any sort of functional posture exercises can be of some help. And that's kind of what that book does. There is no way that the recommended exercises in Pain Free can completely fix most people because everyone's problems are different. In fact, for certain people's conditions, there are certain exercises in Pain Free that shouldn't be done.
With posture therapy, we do not categorize exercises like how most people think. We do not do "for back pain we do these exercises" or "If you see an excessive anterior tilt of the pelvis, do these exercises". If you do that, you are not looking at the body as a whole.
By the way, I have found that there are 3 instances in which this therapy does not work:
You do not do your prescribed program every day.
You do not do all the exercises or in the exact sequences given to you.
You do not do the exercises technically perfect.
I have had a couple people e-mail in regards to wanting me to help and work on them. I will tell you guys something that you probably won't hear from any else in the health field...If I put together a program for you (and you don't make the 3 common mistakes mentioned above) and you don't feel or see any difference, I will give you your money back. In my opinion, that is only right because if you don't feel any difference, then I didn't do jack shit for you.