Since the publication of the first edition of this book in 1982, there have been radical changes in our understanding of Parkinson's disease, its treatment, and in social attitudes towards the condition. This new edition discusses these changes, presenting revised and updated information in answer to questions commonly asked by both patients and their families. It covers the history of the illness, the evolution of medical knowledge, the signs and symptoms of the disease, and how it is treated, including such radical new therapies as brain implants. The book also offers practical advice on living with Parkinsonism. It is the only such book to be written at a level easily accessible to nonspecialists.