This briefing paper uses a question-and-answer format to provide basic information about children and adolescents with attention deficit/hyperactivity disorder (AD/HD). It is intended to help parents, teachers, and others interested in AD/HD know what to look for, what to do, and how to get help. Questions address the following concerns: nature and incidence of ADD; causes of ADD; signs of ADD (inattention, hyperactivity, impulsivity, hyperactivity, disorganization, and disinhibition); the diagnostic AD/HD assessment; how to get one's child evaluated for AD/HD; treatment of AD/HD (education about the disorder, behavior management, medication, and appropriate educational programming); determining if special education will help a child with AD/HD; determining the eligibility of a child for special education services; the child's legal rights for special education; what teachers can do to help a child with AD/HD (includes tips for adapting curriculum and instruction, providing supports to promote executive function, using memory boosters, and using attention getters and keepers), and locating a support group. Four inserts list disorders that co-occur with AD/HD, discuss early intervention services, list ways to improve life in general, and list teaching strategies. A selected bibliography lists 12 references, 4 relevant organizations, and 27 books and videos. (CR)