This practical manual presents a 29-session treatment program designed to engage, motivate, and stimulate processes of change in clients at all stages of recovery. The program is based on the research-supported transtheoretical model of behavior change. The manual describes skills-building activities and interventions that are likely to be most effective with clients as they cycle from the earlier stages of change/m-/precontemplation, contemplation, and preparation/m-/to the later stages, action and maintenance. Each of the structured sessions is presented in a consistent, highly accessible format, including a clear rationale, summary of objectives, and overview of the main activities that will take place. Step-by-step guidelines for implementation are provided, as well as strategies for using a motivational interviewing style. The manual is complete with all needed handouts and exercise forms, ready to photocopy and distribute to clients. Ideal for use with groups, the approach can easily be adapted to individual treatment.