About thirty years ago I read the great book on hypnosis by Lewis Wolberg [Hypnosis, Is It For You?] and thought I knew just about everthing on the subject. Shortly afterwards I read Kreskin's book and he took the whole subject a giant leap forward. This is especially interesting as Kreskin says there's no such thing as hypnosis! Sound strange? The solution to this paradox is one of the reasons this book is so worth reading. When a book stays in your mind for thirty years, that's some indication of it's quality.