Book excerpt: Fifty years ago, Milton Friedman had the ground-breaking idea to improve public education with school vouchers. By separating government financing of education from government administration of schools, Friedman argued, “parents at all income levels would have the freedom to choose the schools their children attend.” Liberty & Learning is a collection of essays from the nation’s top education experts evaluating the progress of Friedman’s innovative idea and reflecting on its merits in the 21st century. The book also contains a special prologue and epilogue by Milton Friedman himself. The contributors to this volume take a variety of approaches to Friedman’s voucher idea. All of them assess the merit of Friedman’s plan through an energetic, contemporary perspective, though some authors take a theoretical position, while others employ a very pragmatic approach.