I have attended seminars by Dillman master instructors in the past and the book is a good reference to those training seminars. The author has done an exceptional amount of research and training, some of which is presented in this book. This subject of pressure point fighting is exteremly difficult to learn without the guidance of a competent instructor or training partner. The book serves as a guide to those already studying the martial arts; it is not for the novice or the self taught individual. That said, pressure point fighting as it is called is not the end all for self defense tactics. Pressure point techniques do serve a good purpose in ones arsenal of self defense tactics, but they are designed to supplement ones total fighting system. And as it has been said before, it is difficult to strike an exact pressure point during active hand to hand combat. Pressure point control holds and escape techniques play a more active role in ones self defense arsenal. So if you have experience in the martial arts or CQB this book will serve to support some of your training, with the use of a competent partner or instructor. Novices or individuals looking for the quick fix (which there are none) try another book.