Chronic pain seldom presents alone. Pain patients frequently have comorbid psychiatric conditions and those suffering from mental illness often experience pain. Nonetheless, pain conditions and psychiatric disorders have customarily been understood and treated as different and separate clinical entities, to the detriment of patients' wellbeing. This book will describe the complex and striking relationships between pain and psychiatric disorders, offering the first comprehensive review of the challenging and neglected intersection between pain medicine and psychiatry. Written by world-renowned experts in the fields of pain and psychiatry, chapters contribute a valuable array of clinical and theoretical perspectives and include illustrative case examples throughout.