Part of the Oxford Psychiatry Library (OPL) series, this pocketbook is an essential resource for clinicians, providing guidance on how the diagnosis of personality disorder has developed, what it means, how it is characterised and how best to help patients with personality disorders. This easy-to-use text is ideal for busy clinicians, providing practical advice highlighted with useful 'key points'. The book's structure will take into account the likely major changes in diagnosis as diagnostic classification systems are reviewed (DSM-V and ICD), ensuring it remains a useful tool for clinicians to refer to. This book will serve as a practical reference for psychiatrists, psychiatric trainees, clinical psychologists, GPs with a special interest in mental health, and other mental health clinicians.