Liberal arts author, operator of the blackboard-based teaching channel *All-Reads*, and planner of the "Teaching Skills Enhancement Project TOT." Contemplates how the enhancement of literacy and the dissemination of liberal arts, based on integrated thinking, can contribute to the community. Researches and lectures on the art of "teaching." He debuted as an author after winning the Information and Communication Culture New Book Contest and began lecturing by teaching writing and translation courses at the Hankyoreh Education and Culture Center. He has written liberal arts books such as *The Reason We Read and Write*, *World History in One Night*, and *Writing Starts with One Sentence*, as well as science and technology books such as *The Comfort of Science* and *Will Informatization Change the World?*. He wrote *Korean Language Study for Translators*, a Korean language course for translators, and translated English-language essays such as *Perfect Red* and *What Does It Mean to Be Manly?* into Korean. He has served as an essay writing instructor at EBS and Changbi Education, and as a judge for the DMZ International Documentary Film Festival and the Changbi Youth Writing Contest. His writings have been included in approximately 20 high school textbooks and teacher's guides. He received the Minister of Culture Award for planning the “Movement for Correct Use of Our Language and Writing.” He teaches a wide range of students, from elementary schoolers to graduate students, and currently lectures on integrated knowledge that combines humanities, science, and mathematics.