I recently purchased this book in addition to the "On-Scene Guide for Crisis Negotiators" by Lanceley, with the notion that I could learn more from this book. I am a police officer by profession. However, I got a bit disappointed with this book, as it contained mostly bulleted guidelines (one was even listed with 159 guidelines that the police officer would find very hard to remember)that presented very little explanations. I found it very surprising that one topic even went on to discuss "how much one would charge for his services to the hostage negotiations team" (page 78), with the argument that the negotiator (outsider) needs to be compensated. Is this issue worth discussing? While it presented some valuable inputs, I believe that the "On-Scene Guide for Crisis Negotiators" by Lanceley is the best book in this field so far, in my honest opinion.