The reference work on ADHD in adulthood is now in its 4th edition. Attention Deficit/Hyperactivity Disorder (ADHD) is no longer just a "childhood condition": it is increasingly being diagnosed and treated in adults as well. The ongoing success of the work "ADHD in Adulthood" reflects the growing demand and need for knowledge on this topic. Johanna and Klaus-Henning Krause are pioneers in the field of research and treatment of ADHD in adults. In the fully revised 4th edition, they continue to follow their proven concept of providing both foundational and practical knowledge in a well-founded and concise manner. In addition to describing the causes and neurobiology of this disorder, they provide detailed insights into the diagnosis and therapy of adult ADHD—very practical and illustrative, using numerous case studies.