Sponsored by the National Center on School Choice, a research consortium headed by Vanderbilt University, this volume examines the growth and outcomes of the charter school movement. Starting in 1992-93 when the nation’s first charter school was opened in Minneapolis, the movement has now spread to 40 states and the District of Columbia and by 2005-06 enrolled 1,040,536 students in 3,613 charter schools. The purpose of this volume is to help monitor this fast-growing movement by compiling, organizing and making available some of the most rigorous and policy-relevant research on K-12 charter schools. Key features of this important new book include: Expertise – The National Center on School Choice includes internationally known scholars from the following institutions: Harvard University, Brown University, Stanford University, Brookings Institution, National Bureau of Economic Research and Northwest Evaluation Association. Cross-Disciplinary – The volume brings together material from related disciplines and methodologies that are associated with the individual and systemic effects of charter schools. Coherent Structure – Each section begins with a lengthy introduction that summarizes the themes and major findings of that section. A summarizing chapter by Mark Schneider, the Commissioner of the National Center on Educational Statistics, concludes the book. This volume is appropriate for researchers, instructors and graduate students in education policy programs and in political science and economics, as well as in-service administrators, policy makers, and providers.