From addictions treatment pioneer G. Alan Marlatt and associates, this is the authoritative work on harm reduction: its principles, strategies, and practical applications. Contributors review programs that have been developed and tested for a range of high-risk behaviors, including problem drinking, tobacco use, illicit drug use, and risky sexual behavior. Flexible, tailored, culturally competent treatment approaches are described for marginalized and underserved communities. The volume also explores philosophical and policy-related debates surrounding this growing movement. New to this edition: reflects significant advances in research and clinical practice, as well as increasing professional acceptance of the harm reduction model chapters on the current status of the field, harm reduction psychotherapy, and treatment of dual disorders chapters on additional populations (adolescent drinkers and Hispanic/Latino and Asian American substance users) and an additional substance (cannabis).