Book excerpt: Drawing upon the knowledge of expert contributors, Complementary Therapies in Neurology: An Evidence-Based Approach provides an introduction to CAM therapies and how a clinician might use them in the treatment of specific neurologic diseases. Informally divided into two sections, the book explores empirically testable theories about the mechanisms of action involved on CAM modalities. The first section reviews commonly used CAM therapies that have some scientific basis and rationale for their use in neurological disorders including botanicals, manipulative and body-based therapies, mind-body th.