Book excerpt: Pediatric Neuropsychiatry provides the most updated and clinically relevant information on psychiatric disorders in children and adolescents with disturbances of brain function. Bridging the fields of psychiatry and neurology, this landmark work emphasizes the link between developmental brain biology and behavior. Major sections focus on neuropsychiatric aspects of specific psychiatric and neurologic disorders, highlighting the influence of the developing nervous system on these disorders' pathophysiology, manifestations, clinical course, treatment, and prognosis. Other sections discuss all contemporary diagnostic and therapeutic modalities. Chapters include case histories, algorithms, tables, and appendices that explain the rudiments of testing.