Book excerpt: In this book, leading authorities on the family show how families, parents, and children have been affected by changing patterns of marriage and cohabitation. Taking a long historical perspective, some authors consider trends such as the decline of multigenerational families and group differences in the relationships between economic opportunity and the timing of marriage. But the focus is predominantly on questions of current interest: patterns of union formation, differences between marriage and cohabitation, contact between divorced fathers and their children, the division of household labor, and the transmission of attitudes and behavior across generations. Intended for scholars and advanced students, this book offers essential analysis of the changing dimensions of the American family.