The fourth edition of Michael Yapko's classic text, Trancework, continues to be the comprehensive guide for learning the fundamental skills of clinical hypnosis. This new edition not only accommodates new studies and topics that have attained a level of importance worthy of their inclusion, but also contains five new chapters on topics such as Mind-body Therapy, Positive Psychology, and Pediatric Hypnosis. Included with the book is a DVD of Dr. Yapko's session with Vicki, an emotionally powerful and technically excellent session. For those who wish to follow along, a CD is included containing the session transcript.