Partnership problems are increasingly taking up space in therapeutic practice. Divorce rates are rising, and partnership issues are becoming more frequently the cause of neurotic, psychosomatic, and psychiatric disorders. As a result, interest in marriage and partnership therapy has grown significantly in recent years. The therapy manual presents the theory and practice of marriage and couple therapy based on the current state of knowledge. The authors describe a comprehensive therapy program in a practical and understandable way, focusing in particular on training the couples' communication skills. Numerous illustrative case examples clarify the content. The manual provides easily implementable practical aids for applying the presented therapy program.