This volume takes a multi-level approach to understanding and treating personality disorder, identifying core symptoms and problems that many patients share and providing a comprehensive framework for clinical intervention. Drawing on etiological knowledge as well as outcome research, the book identifies effective strategies for addressing key areas of the patient's psychosocial and biological functioning. The clinician learns how to conceptualize the phases of treatment and use the stages-of-change model as a guide for sequencing and selecting appropriate interventions. Pragmatic and flexible, the research-based strategies presented here are applicable in diverse settings, in therapies ranging from crisis intervention to long-term treatment.