During her treatment for cancer, Mary Anne Schwalbe and her son Will spent many hours sitting in waiting rooms together. To pass the time, they would talk about the books they were reading. Once, by chance, they read the same book at the same time—and an informal book club of two was born. Through their wide-ranging reading, Will and Mary Anne—and we, their fellow readers—are reminded how books can be comforting, astonishing, and illuminating, changing the way that we feel about and interact with the world around us.