This issue of Neurologic Clinics addresses movement disorders and contains the following articles:: Etiogenesis of Parkinsons Disease; Medical Treatment of Parkinsons Disease; Surgical Treatment of Movement Disorders; Tremor:: Clinical Features, Pathophysiology and Treatment; Dystonia:: Genetics and Treatment; Huntingtons Disease and Other Choreas; Tourettes Syndrome:: Clinical Features and Treatment; Myoclonus:: Pathophysiology and Treatment; Restless Legs Syndrome; Psychogenic Movement Disorders; and Peripherally-Induced Movement Disorders.