Woosung Bae, editor, is Professor in the Department of Korean History at the University of Seoul, Seoul, South Korea, and Visiting Scholar at Korea Institute, Harvard University (January 2009 to January 2010). He is also the author of ChosOn and Chunghwa: The World and Civilization That ChosOn Dreamt and Imagined, Tolbegae, 2014. Changsu Kim, author, is Professor in the Department of History at Chonnam National University, Gwangju, South Korea. Timothy Vincent Atkinson, translator, is Professor at Seoul University of Foreign Studies, Seoul, South Korea, who worked on the translation: A Korean Scholar's Rude Awakening in Qing China: Pak Chega's Discourse on Northern Learning (Honolulu: University of Hawai'i Press, 2019). Yoonjeong Shim, translator, has a Ph.D. in Korean history and co-translated The Veritable Records of King Sejong 1 (Gwacheon, Gyeonggi: National Institute of Korean History, 2016). Kenneth R. Robinson, copy editor, is a former Senior Associate Professor at International Christian University, Tokyo, Japan (Division of Social Sciences). He has co-translated with JaHyun Kim Haboush A Korean War Captive in Japan, 1597-1600: The Writings of Kang Hang (New York: Columbia University Press, 2013).