A French existentialist philosopher, playwright, novelist, screenwriter, political activist, biographer, and literary critic. He was one of the leading figures in 20th century French philosophy, existentialism, and Marxism, and his work continues to influence fields such as Marxist philosophy, sociology, and literary studies.

A French existentialist philosopher, playwright, novelist, screenwriter, political activist, biographer, and literary critic. He was one of the leading figures in 20th century French philosophy, existentialism, and Marxism, and his work continues to influence fields such as Marxist philosophy, sociology, and literary studies.