This book is a detailed, clear, well-structured introduction to the psychodynamics of love and sexual relationships. It integrates the ideas of classical psychoanalysis and object relations theory regarding the role of sexuality in human relationships. The psychosexual development of the individual, considered from infancy to old age, is correlated with the life cycle of the family. The behavioral methodology of sex therapy is enriched with an understanding of unconscious communication and the psychoanalytic technique of talking treatment. This book is addressed to a wide range of specialists: primarily psychoanalytic therapists, marriage and family therapists and sex therapists, as well as counseling psychologists, clinical psychologists and psychiatrists.