Sun Mu is a Korean painter. He worked as a propaganda artist in North Korea before fleeing to South Korea in the 1990s. Sun Mu was born in North Korea and trained by the North Korean Army as a propaganda artist. Later he studied art in college.
During a severe famine in the 1990s he fled to South Korea where he works as a painter. Out of concern for the family he left behind in North Korea he uses the pseudonym "Sun Mu" instead of his real name and does not allow photos of his face.
(Source: Wikipedia)