The book’s chapters focus on advocacy efforts within and across three national contexts—England, Canada, and the United States. Together they expand current scholarship by demonstrating how different constituencies develop alliances, experience tensions, and navigate the politics inherent in change efforts. By examining the intersections of parent and community organizing, teacher unions, and school–community partnerships across national contexts, the chapters uncover fruitful new terrain for understanding the theory and practice of educational activism. This volume was originally published as a special issue of Leadership and Policy in Schools.