Hyewon Yum was a very nervous mother when her own son started kindergarten. She's since realized that yes, he was ready for big-kid school. She is the creator of three previous picture books: Last Night, a Fiction Honorable Mention for the Bologna Ragazzi Award and winner of the Golden Kite Award for Picture Book Illustration; There Are No Scary Wolves, winner of the Society of Illustrators' Founder's Award; and The Twins' Blanket, a Junior Library Guild selection. She lives in Brooklyn, New York.