Sophie's World

Sophie's World: A Novel About the History of Philosophy is a 1991 novel by Norwegian writer Jostein Gaarder. It follows Sophie Amundsen, a Norwegian teenager, who is introduced to the history of philosophy as she is asked "Who are you?" "Where does this world come from?" in a letter from an unknown philosopher. The nonfictional content of the book roughly aligns with Bertrand Russell's A History of Western Philosophy.