This volume examines adoption as a way of understanding the practices and ideology of kinship and family more generally. Adoption allows a window onto discussions of what constitute family or kin, the role of biological connectedness, oversight of parenting practices by the state, and the role of race, gender, sexuality, and socio-economic class in the building of families. The book focuses primarily on adoption practices in the US but will also use examples of adoption and fostering across cultures to put those American adoption practices into a comparative context. While reviewing practices of and issues surrounding adoption, the authors highlight the ways these practices and discussions allow us greater insight into overall practices of kinship and family.