Kang Chol-Hwan (강철환) is a North Korean defector and author. As a child, he was imprisoned in the Yodok concentration camp for 10 years. After his release he fled the country, first to China and eventually to South Korea. He is the author, with Pierre Rigoulot, of The Aquariums of Pyongyang and worked as a staff writer specialized in North Korean affairs for The Chosun Ilbo. He is the founder and president of the North Korea Strategy Center.

Source: wikipedia