Harry Turtledove, known as the “Master of Alternative History,” is the Hugo and Nebula Award–winning author of a number of bestselling series and standalone novels. He received his PhD from UCLA in Byzantine history and worked as a technical writer for the Los Angeles County Office of Education before becoming a full-time fiction writer. He also served as the treasurer of the Science Fiction Writers of America. He has written a number of successful series, including the Crosstime Traffic series, the Darkness series, and the Worldwar I Colonization series, among others. His standalone works include Ruled Brittania, Every Inch a King, Conan of Venarium, Household Gods, and Justinian.