Maxim Gorky, pseudonym of Alexei Maksimovich Peshkov, Soviet novelist, playwright and essayist, who was a founder of social realism. Although known principally as a writer, he was closely associated with the tumultuous revolutionary period of his own country. The Mother, one of his best-known works, is the story of the radicalization of an uneducated woman that was later taken as a model for the Socialist Realist novel, and his autobiographical masterpiece Childhood.