I am a psychiatrist with very little training in sex therapy, and this book has already given me confidence to discuss sexuality with my clients, normalizing and encouraging their experiences. The structure of the book is a little annoying - chapters are often interrupted by a text box that will be repeated in pararaph form immediately after, and the author keeps repeating a phrase that sex is "15-20 percent positive" but percent of WHAT is never said. Four of every five times are good? One of every five days is spent having good sex? It had a kind of meaningless pseudoscience to its tone that detracted from the otherwise useful and straightforward content. Case studies and sexual exercizes were helpful and plentiful, though the book often referenced exercizes from the author's other works without describing them. All in all, a very useful tool for the mental health professional.