Book excerpt: This timely reference presents, for the first time, new findings in molecular genetics that are applicable to the epidemiology, pathogenesis, neuropathology, clinical features, and management of ataxia-bridging the gap between scientific and clinical practice. Organized by the distinctive ataxia disorders, their pathogenesis, and management-facilitating quick and efficient diagnoses! Providing complementary sections on the anatomy of the spinocerebellar system, its normal function, and a history of ataxia research and management, the Handbook of Ataxia Disorders clarifies the impact of identifying the molecular causes of ataxia offers in-depth analysis of dominant and recessive and nonhereditary ataxia disorders explores the vital connection between the genotypes and phenotypes of various degenerative ataxia disorders and more! Written by more than 60 international experts and supplemented with over 2600 literature references, photographs, micrographs, drawings, and tables, the Handbook of Ataxia Disorders is an essential and useful reference for clinical neurologists and neuropathologists, neuropediatricians, geneticists, physiatrists, and medical school students in these disciplines.