How do biological and environmental factors influence the development of childhood and adolescent disorders? There has been a substantial increase of interest in research into child and adolescent psychopathology. In this book, Cecilia Essau brings together contributions from the UK, the US and Canada to provide a comprehensive summary of the information available on the subject. Beginning with an introduction to general issues related to child and adolescent psychopathology, including theoretical models of normal and abnormal development, each chapter goes on to address the issues associated with specific disorders, such as: Oppositional Defiant Disorder and Conduct Disorder; Attention-Deficit/Hyperactivity Disorder; Eating Disorders; Substance Use Disorders; and Somatoform Disorders. The contributors present a thorough overview of each disorder, including discussion of definition and classification, epidemiology, risk factors, comorbidity, course, outcome and prevention.