The authors have done their homework in terms of linking self-harm behavior to past histories of trauma, body alienation, and intense feelings of guilt, rage, and shame. They also correctly identify the major comorbid conditions associated with self-injury, including eating disorders, substance abuse, borderline personality disorder, and dissociative identity disorder. But although their presentations of the "whys" of self-injury are accurate and well written, they do not cover much ground not already traversed by Favazza (5), Favazza and Conterio (6), and Walsh and Rosen (7) in the 1980s.