Yoon Ha Lee (yoonhalee.com) is the New York Times best-selling author of Dragon Pearl, a companion to this book and winner of the Locus Award and the Mythopoeic Award. He has also published several books for adults, including a standalone fantasy entitled Phoenix Extravagant, and the Machineries of Empire space opera trilogy: Ninefox Gambit, Raven Strategem, and Revenant Gun. Yoon draws inspiration from a variety of sources, e.g. Korean history and mythology, fairy tales, higher mathematics, classic moral dilemmas, and genre fiction. His website can be found at yoonhalee.com and his Twitter handle is @deuceofgears.