Until recently, studies of changes in the welfare state have tended to focus on transformations in the nature of social policies and their level of generosity. The New Governance of Welfare States in the United States and Europe concentrates on an often overlooked dimension: territorial and governance transformations. Employing detailed case studies and more than seventy-five interviews, Mariely Lopez-Santana captures how a variety of postindustrial countries across both sides of the Atlantic have transformed the postwar organization of their labor market policy settings through decentralization, centralization, and delegation reforms. These changes have in turn changed the role of national and subnational levels of government, as well as nongovernmental actors, in the organization, management, and provision of labor market policies and services. Lopez-Santana's multidisciplinary, comparative, and multilevel approach to welfare state change is an original and important step forward in our understanding of welfare reforms enacted since the mid-1990s.