If you have any kind of knee problem that you have not been able to resolve through your doctor, osteopath etc, then do yourself a big favour and run, hop, limp or crawl to buy this book. Grisogono really knows her stuff, & knows how to get it across to the layperson.The book discusses many different knee conditions, and gives detailed self help exercises together with careful instructions of what exercises can address what conditions. This book may not be able to fix your knee permanently , but it may just show you how to build up a suite of remedial exercises that can allow you to work around your injury. Very useful discussions about what aspects of what sports may help or hinder particular conditions. For many people, a potentially life-altering book.