This anthology examines exemplary practices of teachers' unions at the local and national level, presenting visions for the 21st century that involve teachers' unions in the fight to improve public schools and conditions of social justice throughout U.S. communities. Six sections feature 25 articles: (1) "Overview," including "Survival and Justice: Rethinking Teacher Union Strategy" (Bob Peterson) and "A Hard Lesson from History" (Bob Peterson); (2) "Promising Practices," including "Raising Professional Standards" (Tom Mooney), "Unions Can Create a Sense of Hope" (Michael Charney), and "Staffing & Seniority in Seattle" (Margie Slovan); (3) "Lessons from History," including "Chicago Teachers' Federation and Its Legacy" (Robert Lowe), "If Not Now, When? Teacher Unions in NYC" (Dan Perlstein), and "Facing Tough Decisions" (Herbert Kohl); (4) "The Prospects for a United Teachers Union," including "What Happened to the NEA/AFT Merger?" (Ann Bastian) and "Whither Public Education?" (Sandra Feldman); (5) "Organizing for the Future," including "The Strength of the Public Sector" (Bob Chase), "The Market Is Not the Answer" (interview with Jonathan Kozol), and "Questions and Answers" (Bob Peterson); and (6) "Resources and Study Guide" (organizations, books, and questions for discussion). (SM)