Encyclopedic in scope, Lewis's Child and Adolescent Psychiatry: A Comprehensive Textbook, 6th Edition, provides up-to-date, authoritative information on scientific principles, research methodologies, and everyday clinical care. New editor Dr. Gerrit I. van Schalkwyk, assisted by co-editors Drs. Fred R. Volkmar, Michael H. Bloch, Hanna E. Stevens, and Andres Martin, leads a team of more than 160 contributing authors who have revised and updated this foundational text. It remains a must-have reference for anyone involved in the study or practice of child and adolescent psychiatry.