This study presents three ideal-typic models for analyzing inequality in kin-based, non-stratified societies that are commonly described as bands, tribes or ranked societies (but not chiefdoms). Each model discusses the organization of inequality associated with a particular way of validating marriages. The book is a serious and complex attempt to understand the bases and dynamics of inequality in classless societies. It offers a sophisticated argument for the position that there is a culturally-structured basis for women's universal subordination. An important strength of Collier's theoretical interpretation is that it makes the case for universality of subordination without slipping into biological reductionism.