- Opere narrative ambientate ad Arda
- Il Signore degli Anelli (The Lord of the Rings), 1954-1955
- Lo Hobbit (The Hobbit), 1937
- Il Silmarillion (The Silmarillion), 1977
- La storia della Terra di Mezzo (The History of Middle-earth)
- Racconti ritrovati (The Book of Lost Tales 1), 1983
- Racconti perduti (The Book of Lost Tales 2), 1984
- I lai del Beleriand (The Lays of Beleriand), 1985
- La formazione della Terra di Mezzo (The Shaping of Middle-earth), 1986
- The Lost Road and Other Writings, 1987
- The Return of the Shadow, 1988
- The Treason of Isengard, 1989
- The War of the Ring, 1990
- Sauron Defeated, 1992
- Morgoth's Ring, 1993
- The War of the Jewels, 1994
- The Peoples of Middle-earth, 1996
- Racconti incompiuti (Unfinished Tales), 1980
- I figli di Húrin (The Children of Húrin), 2007
- Beren e Lúthien, 2017
- La caduta di Gondolin, (The Fall of Gondolin), 2018
- Le avventure di Tom Bombadil (The Adventures of Tom Bombadil), 1962
- Fiabe
- Saggi e altro
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