Moon Young-sook was born in Seosan, South Chungcheong Province, in 1953. Her literary career took off when she won the 2nd Blue Literature Prize in 2004 and the 6th Literature Neighborhood Prize for Children's Literature in 2005. In 2012, she received a creative grant from the Seoul Foundation for Arts and Culture.
Moon's main reason for writing stories is to teach young people about parts of Korean history that Koreans must never forget. Some of her best-known works are the young adult historical novels The Kareiski's Endless Wandering and The Children of Henequen. She has also written a number of children's novels, including Picture in the Tomb, The Dark Sea, Hagi: Lady of the Court, The Coat of Many Colors, The Old Man Who Became a Little Child, and The Bread of Kaesong.