This new book provides an overview of the diagnosis, assessment and management of Parkinson Disease (PD). It goes on to discuss established and novel therapies and concludes with several case histories. The text highlights the management of problems such as late dyskinesias, akinesia crisis and late phase PD and includes clinical and research aspects of Parkinson Syndrome with differential diagnosis of different syndromes of the extrapyramidal system and particular reference to Idiopathic Parkinson Disease (IPD). Aspects of IPD such as epidemiology, clinical findings in various age-groups, etiological factors, pathophysiology, and detailed drug treatment with practical guidelines are also discussed.