My guest on this week’s Global Prosperity Wonkcast is CGD senior fellow Lant Pritchett, whose new book, The Rebirth of Education: Schooling Ain’t Learning, was released last month and is now available on Kindle. The book addresses a fundamental problem in education: despite great progress to meet the 2015 Millennium Development Goal target for primary school completion, students the world over are leaving school having learned very little. “They need to be in school and learn,” Pritchett says. “If you create systems where the only measures of schooling are kids in seats, you’re going to get measures of time served rather than learning gained.”