Graduated from the Department of Visual Communication Design at Hongik University, he is an editorial designer and picture book planner. Currently, he is the head of Sang Publishing, a publishing house specializing in creative picture books. From 2008 to 2011, he published 《Picture Book Imagination》, Korea’s first magazine dedicated to picture books. He has been involved in planning and organizing the CJ Picture Book Festival, an international picture book exhibition linked to the CJ Picture Book Award. He served as Vice President of the Korean Board on Books for Young People (KBBY) and has taught at Hills (the Korean Illustration School), Kaywon University of Art and Design, and the Sangsangmadang Academy’s Bologna Workshop.