(English) Choi is a recipient of the Bologna Ragazzi Award in the area of fiction. She writes and draws at home which overlooks a children’s park. The books she illustrated include Is Anyone There?, The Grim Reaper and the Tiger, The Seokguram Grotto, How a Superhero Wipes Himself, A Country Where Words Live, Stories from a Three-Hundred-Year-Old Boy, Wimpy Manbo, Unbeatable Malsuk, The Zoo of Letters, and more. She also wrote and illustrated The Ways to Tend to Your House and I Am the Protector of My House!