Now in a revised and updated fourth edition, this comprehensive, bestselling work has earned its place as the leading resource for parents. Prominent authority Russell A. Barkley guides parents to understand why 6- to 18-year-olds with attention-deficit/hyperactivity disorder (ADHD) act the way they do--and provides practical steps to help them live up to their potential. Readers learn how to find the right professional help, get needed support at...