"The Secret Life of Walter Mitty" (1939) is a short story by James Thurber. The most famous of Thurber's stories, it first appeared in The New Yorker on March 18, 1939, and was first collected in his book My World and Welcome to It (Harcourt, Brace and Company, 1942). It has since been reprinted in James Thurber: Writings and Drawings (The...