Although unconventional therapies have coexisted with traditional medicine for centuries, the extent of their utilization was only recently recognized; we now know between one third and one half of patients receiving traditional rehabilitation therapies have had some experience with what has come to be referred to variously as alternative, complementary, or integrative medicine. Given the pervasiveness and popularity of alternative medicine, physicians and other health professionals should be able to appropriately advise or counsel patients regarding the potential benefits or problems associated with such interventions. In order to do so they need to become familiar with some of the more common therapies and the rapidly expanding research literature that has grown around them. The present volume addresses these needs and will serve as an introductory guide for rehabilitation practitioners who wish to expand their range of treatment options.