First understand that this book is ideal for beginners and teachers of hypnotherapy. Hunter's The Art of Hypnotherapy: Mastering Client-Centered Techniques is a very detailed, focused guide; a full hypnotherapy course book. Hunter is straight to the point. He comes in with a backbone not a wishbone. He does not compromise your readers, learners or clients' integrity. So if you are into short courses, avoid this book, it's for professionals. This book is based on thorough in-depth work, it's for someone who wants to pull their weight and be a professional hypnotherapist.
There is enough technical information in here to give you an informed introduction to hypnosis and hypnotherapy. If you are just playing around, let the book go, it's for the disciplined. The things you are not good at are in this book and it helps you to count on yourself in a storm, and to rise when you need to. It is informative, and once you begin working with the clients you least want to, you will find this book even more difficult to put down. It's based on experience.
The Art of Hypnotherapy has everything you need to know, from mastering basic techniques to ethics and potential dangers. The entire book is presented like a college course, enabling you to get the most out of it.