Fainstein applies theoretical concepts about justice developed by contemporary philosophers to the concrete problems faced by urban planners and policymakers and argues that, despite structural obstacles, meaningful reform can be achieved at the local level. In the first half of , Fainstein draws on the work of John Rawls, Martha Nussbaum, Iris Marion Young, Nancy Fraser, and others to develop an approach to justice relevant to twenty-first-century cities, one that incorporates three central concepts: diversity, democracy, and equity. In the book's second half, Fainstein tests her ideas through case studies of New York, London, and Amsterdam by evaluating their postwar programs for housing and development in relation to the three norms. She concludes by identifying a set of specific criteria for urban planners and policymakers to consider when developing programs to assure greater justice in both the process of their formulation and their effects.