Abstract The Diagnostic and Statistical Manual of Mental Disorders (DSM-IV; American Psychiatric Association, 1994) describes two eating disorder diagnoses, anorexia nervosa (AN) and bulimia nervosa (BN). Provisional criteria are also provided in DSM-IV for binge eating disorder (BED), which is an example of an eating disorder not otherwise specified. This chapter presents a summary and synthesis of research related to the clinical features and treatment of AN, BN, and BED, including studies of prevalence, common comorbidities, and treatment efficacy. Both psychological and pharmacological treatments are reviewed, including cognitive-behavioral therapy, interpersonal psychotherapy, family therapy, and the use of antidepressant medications. Recommendations are made for future research across the eating disorders.