Born in 1971 in Seoul, Yoon Jeong-joo studied Western painting (BFA) at Hongik University. The recipient of the Silver Prize in the 2nd Shinhan Children’s Comics Contest, she has illustrated books including People Who Protect Seeds (published by Changbi), The Tale of Sim Cheong (published by Changbi), Why Did Whales Go to the Sea? (published by Changbi), Let’s Have Fun with Pansori (published by Changbi), Ddolbae Has Been to the Moon (published by Changbi), Pinocchio’s Philosophy Vol. 2: Why Couldn’t Achilles Beat the Turtle? (published by Changbi), Think Soccer! (published by Changbi), The Magic Schedule, Baby Insects Eat Baby Insects, Current Events for Kids, Basic Economics for Kids, Better Speech and Writing for Kids, Picture Cartoons That Enrich Children’s Imagination, Building Human Rights, and Who Laughed?