Stop Walking on Eggshells has already helped more than a million people with friends and family members suffering from borderline personality disorder (BPD) understand this difficult disorder, set boundaries, and help their loved ones to stop relying on dangerous behaviors. This fully revised and updated third edition includes the very latest BPD research, extensive new information on narcissistic personality disorder (NPD), comorbidity and the effectiveness of schema therapy, and includes coping and communication skills readers can use to stabilize their relationship with the BPD or NPD sufferer in their life.