Ontario is the most populous of Canada’s provinces, contains the country’s largest city, and continues to be the centre of finance, IT, and media. It is also experiencing significant changes and upheavals. The Politics of Ontario is the first comprehensive book on Ontario’s politics, government, and public policy since Graham White’s The Government and Politics of Ontario in 1997. Although The Politics of Ontario follows in the same tradition, it departs in several ways. While not losing sight of the enduring themes of Ontario politics and political culture, it reflects the fact that Ontario is no longer Canada’s primary economic engine. Instead of emphasizing the continuity and gradual evolution of Ontario politics, it focuses on change, disruption, and the uncertainty of the political and policy environment through explorations of fiscal and economic policy, the environment, labour, multiculturalism, and the complexities of urbanization, with particular attention given to greater Toronto. The book is divided into four parts: Settings, Institutions, Politics, and Policy. It contains 28 charts, tables, and graphs, and features contributions by virtually all of the leading scholars in the field, including an introductory chapter by Graham White.