The novel 'Invisible Man' was written by the American author Ralph Ellison. Ellison was born in Oklahoma City in 1914 and is best known for his novel, which won the National Book Award in 1953. He was also a scholar and essayist, and his works are considered to be some of the most important contributions to African-American literature. Ellison's work has been widely studied and discussed, and he is remembered as one of the most influential writers of the 20th century.