This training manual presents an 'overview of the role and efficacy of group therapy in substance abuse treatment. The goal ' [is to] describe effective types of group therapy and offer a theoretical basis for group therapy in the treatment of substance use disorders' (p. v). Modules contained in this lesson plan are: groups and substance abuse treatment; types of groups used in substance abuse treatment; criteria for the placement of clients in groups; group development and phase-specific tasks; stages of treatment; group leadership, concepts, and techniques; and supervision.