G. K. Chesterton (29 May 1874 – 14 June 1936) was an English writer, philosopher, biographer, and literary and art critic. He who wrote 80 books, hundreds of poems, approximately 200 short stories, and several plays. He wrote the book called The Everlasting Man, which led a young atheist named C.S. Lewis to become a Christian. His best-known character is the priest-detective Father Brown who appeared in short stories. His most famous novel is The Man Who Was Thursday. He was a Christian before he became a Catholic. Christian themes and symbolism appear in much of his writing.