Hyewon Yum.

Author and Illustrator of These books: The Twins' Little sister, Last Night, a Fiction Honorable Mention for the Bologna Ragazzi award and Winner of the Golden Kite Award; There are No Scary Wolves, Winner of Society of illustrators' Founder's Award; The Twins' Blanket, a Junior Library Guild selection; and Mom, It's my first day of Kindergarten!, which won the Ezra Jack Keats New Illustrator award and   was selected as a Kirkus Reviews Best Book of the Year.

She lives in Brooklyn, New York.