The diagnosis and management of ADHD co-occurring with other disorders such as anxiety, depression, tics and substance use remain major challenges for clinicians treating all age groups. This book guides clinicians trough each step in the diagnosis and management of the comorbidity through essential case studies describing psychiatric disorders that frequently occur with child ADHD are well described in every case. Each case includes a diagnosis section and management section and is accompanied by questions and answers concerning the most important aspects in diagnosing and managing of both ADHD and the comorbid disorders. Drawn from actual clinical encounters, the case studies also feature ample current and valid references.