This book features papers of prominent representatives of the German coaching scene on the professional development of this counseling format. The book thereby offers guidelines for practicing professionals and for scientists as well as for potential users of coaching. Coaching is, after all, developing rapidly. The number and the variety of offers, fields of application, concepts and issues have become hard to keep track of. Efforts to establish coaching professionally are becoming all the more necessary. – In light of the growing internationalization of the coaching market, the translation of this book, which was published in German in 2015, aims at networking the debates and contributing to the global development of professional coaching.