The influential author known for their explorations of existential themes in literature is Albert Camus. A leading figure in existential philosophy, Camus's works, such as The Stranger and The Myth of Sisyphus, challenge conventional notions of meaning and absurdity in human existence. His philosophy centers on the idea of the absurd and the search for purpose in a seemingly indifferent universe. Camus's literary style is characterized by clarity and depth, making significant contributions to 20th-century literature. His ideas continue to influence discussions on philosophy and ethics today.