Arthur Miller was a prominent American playwright known for his powerful works that explore themes of morality, family, and the American Dream. His most famous plays include Death of a Salesman and The Crucible, which have left a lasting impact on American theater and culture. Miller's writing often reflects the struggles of individuals against societal pressures and injustices. He was not only a playwright but also a social critic, using his platform to address important issues of his time, including McCarthyism and the pursuit of truth in a complex world.