Book excerpt: The editors of this volume have assembled recent articles discussing elements of each of the several commonly used psychosocial interventions -- including relapse prevention therapy, community reinforcement, voucher-based programs, self-help therapies, and motivational enhancement therapy--in addition to research-based articles that demonstrate the efficacy of these approaches. The selections in this book will provide the reader with a broad overview of the field as well as the specific information needed to use these therapies in a variety of clinical settings.