Couples and family therapists have long known that intrapersonal difficulties are played out in, and exacerbated by, problems in interpersonal relationships. In this ground-breaking new book, leading couples and family clinicians and researchers present a clinically-based typology of relational disorders. Already hailed as one of the most important books of the decade, this timely volume examines the role of diagnosis in couples and family therapy, and offers clinical criteria for diagnosing a broad spectrum of relational disorders and dysfunctional relational patterns.