Johnson's integrative approach develops fundamental aspects of character types for psychotherapy. What is within us? What can we become? What is possible for us? Psychoanalytic developmental theory, the character analysis of object relations theory, as well as humanistic and body-oriented therapeutic approaches are skillfully integrated in his foundational work. Ulrich Sollmann elaborates on the significance of this foundational work for its application in psychotherapy and the counseling of leaders in organizations, media, and politics in his introduction to the new German edition.