In the United Kingdom (U.K.), group therapy is one of the most widely practiced methods, with a broad range of applications and an extensive literature. The terminology used here is based on the author's chapter in The New Oxford Textbook of Psychiatry (Schlapobersky & Pines, 2008). We used two factors-therapeutic goals and group leadership-to provide a classification of different models and applications. We described group therapy as a method, group analysis (for example) as a model, and an in-patient or weekly group as an application of a model.