Book excerpt: As the world’s urban populations grow, cities become spaces where increasingly diverse peoples negotiate such differences as language, citizenship, ethnicity and race, class and wealth, and gender. Using a comparative framework, Urban Diversity examines the multiple meanings of inclusion and exclusion in fast-changing urban contexts. The contributors identify specific areas of contestation, including public spaces and facilities, governmental structures, civil society institutions, cultural organizations, and cyberspace. The contributors also explore the socioeconomic and cultural mechanisms that can encourage inclusive pluralism in the world’s cities, seeking approaches that view diversity as an asset rather than a threat. Exploring old and new public spaces, practices of marginalized urban dwellers, and actions of the state, the contributors to Urban Diversity assess the formation and reformation of processes of inclusion, whether through deliberate actions intended to rejuvenate democratic political institutions or the spontaneous reactions of city residents.