The information is very abundant. It's clear and illustrated. We find the cure for many ailments known and unknown! The exercises are really simple to execute, however, one must know the exercises which interest us by heart, to chain them. So it takes some time before the full benefit of the book. It's been a month now that I have, I know ten years that I practice daily.
That said, this book does not replace a professional osteopath. After reading this book, I decided to check out while continuing the exercises at home.