The development of social skills, the enhancement of self-esteem, and the overcoming of social anxieties are essential components in the treatment of many mental illnesses, such as depression, panic disorders, or personality disorders. The conditions of a psychiatric or psychosomatic clinic, with limited patient stays, present a particular challenge for successful treatment. This manual provides a reliable tool that competently addresses all the requirements of the inpatient setting for the first time. It builds on the successful foundational work of the author, "Self-Confidence and Social Competence," and offers psychotherapists and physicians in clinics a dependable treatment guide.