Book excerpt: The essays in this volume examine the future of public schooling in the United States and what it will mean to be a leader in public schools. It focuses on the issues most likely to have an impact on American society within the next 20 years. The essays are as follows: "Introduction" (Milli Pierce, Deborah L. Stapleton); "The Limits of Change" (Richard F. Elmore); "The Six Principles of Effective Accountability" (Douglas B. Reeves); "The Challenge of a Changing Nation" (Marcelo M. Suarez-Orozco); "Does More Choice Mean Less Equity?" (Chester E. Finn, Jr.); "Closing the Achievement Gap" (Belinda Williams); "Using Afterschool Programs to Raise Achievement" (Gil G. Noam); and "Learning to Challenge Assumptions" (Richard Rothstein). Some essays are followed by responses by other authors. All essays are followed by suggested discussion questions. (WFA).