Albert Camus was a French philosopher, writer, and journalist who was influential in the development of existentialism. His work emphasized the absurdity of the human condition and the need to create meaning in a world that is often seen as meaningless. Camus was also a humanist who emphasized the importance of personal responsibility and social justice. His most famous work, "The Stranger," is a novel that explores themes such as alienation and the individual's relationship to society.