Taeeun Yoo was born in Korea and grew up in Seoul in her grandfather's beautiful garden-house. She was raised in a large traditional family with nine members and remembers many fun stories. Growing up, she watched her great-grandmother make traditional Korean costumes, and watched her grandfather carefully observe his orchids and bonsai. Now her grandfather often appears in her illustrations.
She studied Korean brush painting at Hong Ik University in Korea, and moved to New York to attend graduate school in illustration at The School of Visual Arts. While she studied in graduate school, she was influenced by one of her teachers, Bruce Waldman, a famous etcher. She made her first children's book using etching. Her work has appeared in Cricket, Ladybug, and The New York Times. Her first picture book, The Little Red Fish will be published by Dial Books for Young Readers in 2007. She is currently working on The Umbrella Queen by Shirin Yim Bridges, to be published by Greenwillow Books, and Only a Witch Can Fly by Alison McGhee, forthcoming from Feiwel & Friends. Taeeun lives in New York City and enjoys walking on the streets, listening to street musicians, and drawing on location.