I just received this book yesterday and I've been thumbing through pages and really enjoying the information and things I've found. However, when I was reading reviews here before it was purchased, I never found anyone warning about the content. I've read lots of John Douglas books, but he's never actually put photos in his books that people would call disturbing. This book, on the other hand, has some SERIOUSLY disturbing pictures in it. If you think you really want to go into the field of criminal profiling and that you're really ready to see these pictures, then fine - get it. But I can guarantee you that if you're still not sure about this career, I would recommend buying a much tamer book on profiling. This book is for those who are seriously considering doing this, or for those who really are on the road to having careers in this area. The pictures really took me by surprise, and coincidentally gave me a very restless night. I wasn't prepared for such images! So just a warning: It's a great and very insightful book, but if you have a weak stomach, DO NOT, I repeat, DO NOT get this book. If you really think you can handle the content, it is a wonderful book that will teach you lots.