This project provides a comprehensive overview of the research literature on anorexia nervosa in female adults and concludes by offering 14 group therapy lesson plans for anorexia nervosa that therapists may use in their practice. There is a remarkable lack of research on the efficacy of treatment designed for individuals diagnosed with anorexia nervosa (Lamoureux & Bottorff, 2005). The overall intent is to provide an applied project that will be useful to counsellors wanting to provide a therapeutic group to female adult clients who are struggling with disordered eating, particularly anorexia nervosa. This project proposes that group therapy is a beneficial treatment format for individuals diagnosed with anorexia nervosa. This project critically explores how group therapy may be beneficial and synthesizes the therapeutic needs of females diagnosed with anorexia nervosa. A literature review that explores the benefits of group psychotherapy, which includes the key therapeutic factors for change and the development and stages of group therapy, is included. This project also identifies what therapeutic factors within group therapy appear to be the most prominent for successful treatment of anorexia nervosa clients. A second literature review explores the characteristics of anorexia nervosa that would be addressed within a group format. The core of this project is the development of 12-session experiential group program manual with a pre-group and post-group lesson, designed as an intervention framework for the facilitation of a group with adult women diagnosed with anorexia nervosa. An appendix contains 14 lesson plans as well as a statement on the use of the group program. (Contains 2 footnotes.)