The majority of those with eating disorders also experience symptoms of anxiety, depression, post-traumatic reactions, and/or obsessive-compulsive disorder. The Renfrew Unified Treatment for Eating Disorders and Comorbidity was developed to help people who struggle with any type of eating disorder as well as intense emotions like anxiety, sadness, anger, and guilt. The treatment described in these manuals is revolutionary in its development, design, and implementation. From the initial selection of evidence-based treatment approaches, to the fastidious assessment of treatment fidelity, to the implementation of the treatment across numerous community-based settings, the approach is one-of-a-kind and will substantially improve our ability to effectively treat persons with eating disorders across treatment settings.