Clients with borderline personality disorder (BPD) need compassionate and proven-effective care to help them manage emotions, improve interpersonal relationships, and move beyond negative beliefs about themselves. This book outlines a new treatment framework utilizing acceptance and commitment therapy (ACT) to help clinicians treat BPD and emotion dysregulation problems with a focus on values and forgiveness. With this guide, clinicians will learn to target the fundamental cause of BPD for better treatment outcomes and happier, healthier clients.