This book provides an explanation of different cultural beliefs about entities. It also gives a complete overview of the different ways and kinds of energy that can attach to someone's field. It talks about astral fragments, energy cords, entities, etc. A large part of the book is sharing what he calls case history. It is like an interview with the person where he is asking questions about the entity before it is removed. He interviews the person while they are in the ISIS state..something he never really defines other than to say what it is not. (not hypnosis) It sounds very much like some kind of hypnosis however. There is another book mentioned by this author that talks about that process. Maybe one can better understand his terms if they read that book first? In the' ISIS state' the host is asked where the entity is lodged in the physical body, what it likes to eat, what it wants to do, etc At any rate, this author has a pretty long and involved process for 'clearing' negative energy. He does it at his clinic and the details are not shared in this book. If you are looking for information about how to clear entities, this is not the place to look. He does not share any of those details. He only gives a few pieces of information in that regard. One of them is that the entity must be observed for a full 10 days before clearing because they can move and hide. I am happy to have this book. I learned a lot. For instance, I was not aware that the astral body shatters at death and that the pieces can attach to someone else's field. He says a large part of entity issues are in this category.My critic of this book is that he does not give any information about how to clear negative entities. I suspect that is because he runs a school where he teaches how to do that. Clearly he wants to attract more students. I think a better title for the book may have been...Interview with an Entity.