What did J.R.R. Tolkien write?

J.R.R. Tolkien wrote Sir Gawain and the Green Knight, Pearl, and Sir Orfeo, The Letters of J.R.R. Tolkien, The Lost Road and Other Writings: Language and Legend Before The Shaping of Middle-earth: The Quenta, the Ambarkanta, and the Annals, and The Silmarillion.