Since the 1970s, mental-health professionals and clinical researchers have made tremendous strides in understanding and treating addictions. This volume surveys the entire field, providing both practitioners and researchers with up-to-date summaries of key findings and methods. Ideal for the lab or clinic, the book is divided into six parts: pharmacology, psychopharmacology, and pharmacophysiology of addictive substances; definitions and diagnosis; etiology, maintenance, and course of substance abuse disorders; case identification, assessment, and treatment planning; treatments, including disease model, family system, medical models, and interventions; and issues for specific populations. The book provides nearly all of the information a professional needs to treat substance abusers. It can also be used as a graduate-level textbook on addictions or to prepare for the American Psychological Association's proficiency certification exam on psychoactive substance abuse disorders.