This book is listed on Amazon as being one of the best books to understanding Narcissists. It comes with a bookmarker that matches the cover. If you suspect that you may be dealing with a narcissist, or if someone is making your home or work life miserable, this book will help you to discern whether or not you are dealing with a narcissist. Knowledge is power. This book gives you that knowledge and a game plan to deal with anyone who is treating you less than worthy. I highly recommend.