This book is a must for anyone interested in self defense. Regardless whether you are a security professional or not. This book teaches you how to end a fight quickly and effectively. Animal Mac Young, covers everything from physical as well as psychological aspects of a fight, and the best way to do it, if possible "legally" which I think is an important aspect, most other books overlook. You can tell the man writes from personal experience and this helps you grasp the whole concept of the book better. Also the language he uses is great and it makes reading the book even more fun. Like everything you read in this subject, YOU must go out there and try to practice the techniques on a regular basis, if you do though, the info on this book might one day save your life.