Emotionally-focused methods are an important instrument in behavior therapy. They are used to dissolve the dysfunctional regulation of emotions in patients and help them to deal constructively with problematic feelings such as fear, shame, guilt, sadness and loneliness. Lammers explains the individual methods and their fields of application and gives suggestions for interventions that start at critical points of the patient's emotional dysregulation. Emotions play a major role in therapeutic work. Almost all mental disorders are accompanied by problematic emotions. On the other hand, the regulation of maladaptive emotions and the activation of adaptive emotions are important for therapeutic change. With the therapeutic tool emotion regulation the authors convey for the first time a broad spectrum of innovative and e.