This comprehensive textbook is made up of two volumes, the first of which provides fundamental background information needed for understanding the neurodevelopmental disorders, while the second provides a comprehensive review of their assessment, diagnosis, and treatment. Divided into nine parts, these books provide a synthesis of recent developments on basic neurobiology, cognitive neuroscience, child development, and developmental psychopathology. The purpose of the book is to assist the professional working with developmental disorders to facilitate the mental growth and social adaptation of affected children and adolescents.