The conceptualization of intrapsychic structures: an overview -- Melanie Klein and her followers -- An ego psychology critique of the Kleinian School -- Fairbairn's theory and challenge -- The contributions of Edith Jacobson -- Mahler's developmental theory: a correlation -- Normal narcissism in middle age -- Pathological narcissism in middle age -- Object relations theory and psychoanalytic technique -- A theory of psychoanalytic psychotherapy tecnique -- A theory of psychoanalytic psycholtherapy -- Regression in groups -- Organizational regression -- Regressive effects of pathology in leaders -- Boundaries and structures in love relations -- The couple and the group.