Our guest is Anthony Doerr, author of the Pulitzer Prize-winning "All the Light We Cannot See," which first appeared in 2014, and which might be one of the most cherished and highest-selling novels of recent times. He joins us to discuss "Cloud Cuckoo Land," his newest novel. Set in Constantinople in the 15th century, in a small town in today's Idaho, and on a spaceship decades from now -- and with all three of these narratives based upon the stories contained within a long-lost book from ancient Greece -- "Cloud Cuckoo Land" is a work of rich imagination, deep compassion, and vast inter-connectedness. Per a critic writing for the San Francisco Chronicle: "Stunning...deeply imagined...a novel about how people find hope in the midst of chaos and fear, and how books themselves might be the best things humans have ever done."