Dr. Seong-Joon Ko is the director of Jeju Institute for Korean Unification.He has been Professor of Political Science in Jeju National University(1977-2016.2). He was visiting Professor of Eat Asian Institute in Columbia University, New York. U.S.A(1999).He served at the Advisory Committee for the Ministry of Unification.He was Chairman of Jeju International Council. He is the Emeritus Professor of Jeju National University, Jeju, Korea. Also, He was chairman of the Jeju Citizen Association for the World Peace Island. 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).「Resight of Korean Unification while travelling Jeju Island」. 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.