I think H G Tudor obviously has a bit of a marketed persona of a narc giving away "trade secrets". However, there were a lot of good thoughts in this book particularly. I think one of the dangers of the narcissism book industry is becoming obsessed with trying to understand their actions and trying to constantly analyse them. This is useful of course in the first stage when you are trying to understand what is wrong with your relationship but there comes a point where the relationship has to disengage. This book made the point that even talking about your narcissist to others was a form of giving energy to them, which was something I hadn't considered. Going no contact is a lot more than having nothing to do with them - it is everything about training your thought process to focus away from him or her. If you are successful with this then the narc will have no option but to try and find their energy source from another victim.
I think this author thinks too highly of himself. I guess that’s a given, since he is a self-professed narcissist. He repeats himself constantly, and manages to take 159 pages to state a few points that could be summed up in 5.