With many children and adults affected by Attention Deficit Hyperactivity Disorder, researchers strive to improve our understanding of the causes, consequences, and treatment of the disorder. This volume examines some of the broad arrays of research in the field of ADHD, from etiology to cutting-edge interventions. The 16 chapters explore topics ranging from comorbidity to advances in the search for biomarkers; to executive, cognitive, and social functioning; to the use of new and alternative therapies. Both the professional and the casual reader alike will find something of interest, whether learning about ADHD for the first time or looking for inspiration for new research questions or potential interventions.