A revised and updated edition of the bestselling guide to understanding borderline personality disorder. After more than two decades as the essential guide to Borderline Personality Disorder (BPD), this new edition now reflects the most up- to-date research that has opened doors to the neurobiological, genetic, and developmental roots of the disorder as well as connections between BPD and substance abuse, sexual abuse, Post-Traumatic Stress Syndrome, ADHD, and eating disord