Books
Mathematics for the Public (in Korean)
Mathematics for the Public (in Korean)
The Joy of Mathematics, or its Possibility
Gimmyoung Publishing, 2022
Welcome to the Mathematics Story Club
Influential Inc., 2022
Letters to My Son: Crossing the Cosmos of Life
Woongjin Books, 2022
Mathematics in History and History in Mathematics
21st Century Books, 2021
When You Need Mathematics Again
Influential Inc., Seoul (2020)
The Moment You Need Mathematics
Influential Inc., Seoul (2018)
The Learning of Mathematics
(with Taekyung Kim) Eunhaeng-namu Publishing, Seoul (2016)
Father's Mathematical Journey
Eunhaeng-namu Publishing, Seoul (2014)
Prime Fanatsy
Banni Publishing, Seoul (2013)