Lee Seonghyun studied illustration at the University of Seoul and HILLS Illustration School. Lee is the author of Blue House, which deals with the tragedy related to the forced demolition of shacks in Yongsan, Korea. His picture book, Korean Wrestling won the Korean Children's Book Illustration Award. The books Lee has illustrated include Looking for a Liar Groom; Eunuch, the Man of the King; My d’Artagnan; Konggi Mom, Patgi Daughter; The Adventure of an Odd Scholar, Lee Sun Dal 1, 2; and Goblin's Hat.