Parkinson’s disease (PD) is the second most common neurodegenerative disorder in the western world, and understanding of this condition has undergone dramatic changes. This book provides an update on current understanding of PD from a clinician’s perspective. The chapters are relatively brief so that they can be easily digested at one sitting, and coverage is wide ranging, addressing both clinical and basic-translational issues. The book covers a range of issues from disease etiology, through explorations of biomarkers and imaging to therapeutic approaches, including dopaminergic and nondopaminergic therapies emerging and future drug treatments, nonpsychiatric therapies and surgical treatments. The penultimate chapter addresses the promise offered by stem cell and gene therapies, and the final chapter explores the current guidelines. These ten chapters from international experts provide accessible and rounded coverage of an extremely significant and challenging disease.