Managing Your Substance Use Disorder: Client Workbook is an interactive recovery guide that engages readers who have a substance use disorder in an active process of learning strategies to manage the daily challenges of sobriety and recovery and to reduce the risk of lapse and relapse. Designed to accompany Managing Substance Use Disorder: Practitioner Guide, this Workbook provides detailed information about substances of use, reader-friendly checklists, and engaging activities in order to personalize the reader's recovery plan. The book then reviews current trends in substance use and disorders, causes and effects of these disorders, substance related disorders, treatment approaches (medications and psychosocial), mutual support programs, and the impact of substance use on the family and concerned significant others, and integrates the best scientifically-supported interventions with the authors' extensive experiences as scientist-clinicians. This Workbook addresses the most common challenges faced by individuals with substance use disorders, such as managing cravings, resisting social pressures to use, coping with negative emotions and moods, building a social support network, involving family or concerned significant others, and reducing lapse and relapse risk.