This book focuses on the clinical perspective of Parkinsonism. Neurodegeneration has been one of the toughest challenges in medicine. The growth of aging population and better diagnostic facilities have meant that neurodegenerative diseases, such as Parkinson's disease, are no more a problem only for the specialists but a condition that doctors at all levels of practice and training experience are expected to know about. Not everything that looks like Parkinson's disease is actually Parkinson's disease. The awareness of atypical features of Parkinsonism can aid better diagnosis as well as more specific management. This book provides a comprehensive understanding of Parkinsonism with emphasis on recognition of diagnosis, and awareness of neurophysiology and nuclear imaging can greatly assist with this. The management of Parkinson's disease can be challenging and the awareness of options for advanced therapies and nonmotor symptoms are always useful. There has been a better recognition of these nonmotor features of Parkinson's disease, and ability to manage them effectively can make a huge difference in life of a patient with Parkinson's disease. This book serves as an invaluable resource for neurology residents as well as practitioners.