Yang Seo Yun studied English at Hankuk University of Foreign Studies. She started writing children’s books because she finds the greatest happiness in talking with curious children. Her published works include Quiz: Harmful Substances!; Is a Hamburger More Dangerous Than a Steak?; Future Jobs I Want to Keep to Myself; Freedom vs. Regulation: Which Comes First?; What We Need to Know About the World: Should We Keep the Olympics and the World Cup?; and What We Need to Know About the World: Will Space Development Lead to Space Inequality?