Today’s Between the Covers podcast is with Christopher Caldwell, author of Reflections on the Revolution in Europe: Immigration, Islam, and the West, which officially publishes today. We discuss the Muslim transformation of the Old World, why Europeans aren’t having enough babies, and whether his book’s title was inspired by Edmund Burke.

Other podcasts from the last couple of weeks cover U2 (the band, not the plane), Kashmir (the region, not the Led Zeppelin song), and the pope (a fictional one, not B16).