Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Advertisement for Kolman

I bought this book because of my interest in the subject.Ze'ev Kolman may be a wonderful healer. I have no first-hand experience of him so I cannot comment on that.However, I was very turned off by the writing of Hans Holzer.The book reads like an infomercial.I wanted information; instead I got a very long and not terribly useful advertisement for Kolman.We are informed how to contact him for healing at very high prices.Actually, there are many wonderful healers out there. I have worked with some of them or met them. They are people of integrity in most cases.None of them commissions a book to hawk themselves like a product in the marketplace.This book does a disservice to Mr. Kolman if, indeed, he is as great as Holzer claims.