Myles na gCopaleen is the pen name of the Irish writer and journalist Brian O'Nolan, known for his humorous and satirical works. He was born in 1911 in County Tyrone, Ireland, and became a prominent figure in Irish literature. His writing often blends the absurd with the everyday, showcasing his unique perspective on life in Ireland. O'Nolan is best known for his novels, including The Third Policeman and At Swim-Two-Birds, which explore themes of identity and reality. His work has influenced many writers and remains celebrated for its wit and creativity, making him a key figure in 20th-century Irish literature.