Dr. Seong-Joon Ko is an Emeritus Professor at Jeju National University, Jeju, Korea. he has been a Professor of Political Science at Jeju National University(1977-2016.2). He was a visiting Professor at the Eat Asian Institute at Columbia University, New York. U.S.A(1999). He was the Chairman of the Jeju International Council. Also, He was chairman of the Jeju Citizen Association for the World Peace Island. And the director of the Jeju Institute for Korean Unification. He has written books including 「Juche Idea and North Korea」(co-author), 「North Korea in Transition」(co-author),「East Asian and Jeju, Peace Island」(co-author), 「OKina and Peace」(co-author).「New understanding of unification problem」, 「Unified Korea and World Peace island Jeju」(co-author). He received his B. A and M.A. in Mass Communication From Sogang University, Korea, and PH.D degree in Political Science from Konkuk University, Korea.