Do political parties merely represent divisions in society? Until now, scholars and other observers have generally agreed that they do. But argues the reverse: that some political parties in fact shape divisions as they struggle to remake the social order. Drawing on the contributors' expertise in Indonesia, India, the United States, Canada, Egypt, and Turkey, this volume demonstrates further that the success and failure of parties to politicize social differences has dramatic consequences for democratic change, economic development, and other large-scale transformations.