Now revised and updated, this widely used text comprehensively reviews theories of addiction to give students and professionals a multidisciplinary foundation for clinical practice. It explores the causes and mechanisms of substance and behavioral addictions, as well as implications for helping people recover. Providing a science-based perspective, the text emphasizes the importance of using treatment and prevention strategies that are grounded in evidence. Thoroughly updated chapters address disease models; public health approaches; understanding and treating comorbidity; psychoanalytic, behavioral, cognitive, and family systems models; sociocultural approaches; behavioral addiction; and motivational models. Student-friendly features include end-of-chapter summaries and review questions. New to This Edition *Updated throughout with current research and clinical advances. *Discussions of cutting-edge topics: genetics of addiction, addiction stigma, and the opioid epidemic. *New and revised clinical vignettes and review questions.