Leslie M. LeCron is the author of several hypnosis books and this one lives up to it's title. He takes you through the information of hypnosis, how it works, how it can help you, what it can and cannot do, a bit of history and information on how to use it yourself. The style is a bit dry at times and you have to work at it to keep going through a couple of the chapters but if you're willing to study the book and take his advice on how to get information from your subconscious and 'change your programming' from forgotten traumas, suggestions that were accepted by your sub-conscious but no longer serve their purpose, etc...the changes can seem almost magical as you communicate directly with your sub-conscious to change your thinking which changes your life.