Superman is the best-known hero of US comic books. He was created by the writer Jerry Siegel and the artist Joseph Shuster, and first appeared in 1938. The 1 began in newspapers a year later and has been used for 2, radio and television programmes and several films. Superman has 3 powers, including great strength and the 4to fly. He uses these powers to fight evil and 5. He only appears when he is needed. For the rest of the time he is Clark Kent, a rather dull and timid journalist.