Women have unintentionally become their own worst enemies through their engagement in "fat talk"--critical dialogue about one's own physical appearance, and "body snarking" or criticism towards other women's bodies. Not only does this harsh judgment pervade our psyches and societies, it also contributes to the glass ceiling in a variety of professions, including politics representing feminist activism. This book reviews and analyzes the origins and effects of fat talk and body snarking, and provides potential solutions that include evidence-based personal therapies and community interventions.