In this book, psychotherapists learn how to activate their clients' emotions through simple breathing exercises. With controlled breathing techniques, clients can learn to perceive, express, and regulate their feelings in remarkably simple ways. Lars Thessen also demonstrates to practitioners how they can systematically and sustainably work with their clients using this or their own therapeutic approach. They can build and promote feelings that are too few, too weak, and too rare, or regulate feelings that are too many, too intense, and too frequent. The approach is suitable for both individual and group therapy. Materials are available for free download.