The book "Behavioral Neurobiology of Huntington's Disease and Parkinson's Disease" offers a comprehensive analysis of the motor dysfunctions and cognitive impairments characteristic of Huntington's disease and Parkinson's disease. It highlights advancements in research, particularly the identification of the genes responsible for these conditions. These discoveries have led to the development of numerous genetic animal models that have revolutionized the understanding of the pathobiology and pathophysiology of these diseases. By studying these models, the earliest manifestations of the diseases can be analyzed both behaviorally and neuropathologically, which is crucial for understanding the disease progression. Furthermore, the relevance of neurotoxic animal models in Parkinson's research is emphasized, particularly concerning mitochondrial dysfunctions. The book is a valuable resource for professionals engaged in the behavioral neurobiology of these disorders.