Temporomandibular joint of the jaw is a specialized joint which is found on either side of skull and work in unison. In short it is also reffered to as TMJ. The joint derives its name from two bones, temporal bone of cranium and mandible of the lower jaw. A kind of synovial joint having articular disc in between two bones which is fibrocartilagenous in nature. This book deals with basic introduction to joints and its anatomy, histology and development, various classification systems of TMJ, mechanism of how this joint works and various imaging techniques along with TMJ disorders and its management.