The "Art of Hypnotherapy" by C. Roy Hunter is a comprehensive textbook focusing on client-centered techniques within the subject area of Allied Health Services and Hypnotherapy. Published by Crown House Publishing LLC in 2010, this trade paperback edition spans 388 pages and is written in English. The book covers various aspects of hypnotherapy, making it a valuable resource for those looking to master this art form in a practical and effective manner. With a new edition available, this book offers a wealth of knowledge and insights for professionals in the field of hypnotherapy.