This article addresses the question of where group work fits into treatment for alcohol dependency. It reviews the various aspects of group work that are relevant along with the key theoretical contributions that define group work activity as well as theories of group formation and group development. In the treatment for alcohol dependency, there are a number of dimensions of group work which should be considered. These are conceptualized as three theoretical levels: theories that underpin the understanding of human behavior, specialized knowledge applied to intervention within the addictions, and theories of group work itself.