This text presents training materials for a study seminar that explores the consequences of marital disruption for individuals as well as for society as a whole. It examines data from a variety of studies including clinical, sociological, and demographic research and is intended to help focus research and discussion in these areas by identifying consistent patterns, inconsistencies, and vacuums in the available data. The seminar consists of six learning modules that address: marriage as an endangered institution, including recent trends in marriage, divorce, and remarriage and changes in attitudes about marriage and family life; the clinical and economic consequences of marital disruption for spouses and the implications for potential marital and family counseling treatment, and intervention; major potential consequences of divorce and separation for children, adolescents, and young adults and post-divorce family dynamics; challenges and stressors faced by stepfamilies when compared to nuclear families and how these additional stresses can affect both the adults and children involved; major public health and public policy issues associated with marital disruption, including the increased utilization of health care services and social welfare programs by those who have experienced a marital disruption; and determinants of marital instability and marital satisfaction. At the beginning of each module, a brief overview describes the module’s purpose, intent, and usefulness. 45 figures and numerous references.