Sleep and Movement Disorders is the second edition of a successful book that was the first of its kind. Since its publication in 2002, significant progress has been made in our understanding of motor control in sleep and the relationship between sleep and movement disorders. Each editor is an authority on the subject and has assembled expert specialists for their chapter authors. The topic is very timely, the latest edition of the International classification of sleep disorders (ICSD-2, 2005) included a separate category of 'Sleep Related Movement Disorders' emphasizing the increasing awareness of sleep-related movements and the importance of recognizing sleep-related movement disorders for diagnosis, differential diagnosis and treatment. This is a comprehensive resource, including all findings from the last 8 years of research.All the previous chapters have been revised with new materials and references. Several chapters have been added to address recent advances. For instance, new sleep-related disorders have been classified and diagnosed, including catathrenia, alternating leg muscle activation (ALMA), propriospinal myoclonus (PSM) at sleep onset, faciomandibular myoclonus at sleep onset, etc. Further understanding of the pathophysiology of RLS-PLMS is addresses, as is the neurobiology of REM Behavior Disorder (RBD), predictors of neurodegenerative diseases, and so on. Sleep and Movement Disorders is divided into four major sections and subsections preceded by an introductory essay to provide perspective on the subject. The book is intended for all sleep and movement disorders specialists as well as those neurologists, internists including pulmonologists, psychiatrists, psychologists, otolaryngologists, pediatricians, neurosurgeons, dentists and family physicians who must deal with the many patients suffering from undiagnosed or underdiagnosed sleep disorders including sleep-related abnormal movements.