Lee Yihwa has worked for the National Culture Promotion Committee and Kyujanggak library at Seoul National University and dedicated  himself to Korean studies. His passion goes to research on Korean national history, the history of everyday life, and the history of people. One of his specialties is what would be called personage study in which Lee  reevaluates historic people from the perspective of today. Lee is a prolific author. His books include Korean History As Stories Series (22 volumes); Stories of People in Korean History Series (10 volumes); One Volume Korean History; Biographical History of the Donghak Peasant War; Jeon Bongjun, The Record of the Revolution; Heo Gyun’s Thoughts; We’ve Met a Great Spring; and The Age of Popular Uprising.