This guide is intended for adults who suffer from ADHD, as well as for relatives and interested parties who want to find out more about the causes, manifestations, and accompanying symptoms of ADHD in adulthood and options for treating it. Special emphasis is given to self-management options for those affected, which have been developed on the basis of therapeutic experience and are being used successfully in practice. A chapter on resources has been added to this second edition. A large number of downloadable working materials provide further support for successfully coping with ADHD in everyday life.