Mark Twain is the author of Mark Twain's Autobiography (1924), Stormfield Edition of the Writings of Mark Twain [pseud.].: Sketches new and old (1917), The Writings of Mark Twain: The innocents abroad, or, The new Pilgrim's progress (1911), The Writings of Mark Twain: Sketches, new and old (1903), The Writings of Mark Twain [pseud.]: Sketches, new and old (1903).