| Full Title | Abbreviations | Notes |
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| The Lord of the Rings | LotR | |
| the Silmarilon | S | |
| The Hobbit | H | |
| The Fellowship of the Ring | FR | |
| The Two Towers | TT | |
| The Return of the King | RT | |
| Pictures by Tolkien | P | |
| Unfinished Tales | UT | |
| Tree and Leaf | TL | |
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| History of Middle Earth | HOME | Name of Series |
| The Book of Lost Tales, Part One | I | |
| The Book of Lost Tales, Part Two | II | |
| The Lays of Beleriand | III | |
| The Shaping of Middle Earth | IV | |
| The Lost Road | V | |
| The Return of the Shadow | VI | |
| The Treason of Isengard | VII | |
| The War of the Ring | VIII | |
| Sauron Defeated | IX | |
| Morgoth’s Ring | X | |
| The War of the Jewels | XI | |
| The Peoples of Middle-Earth | XII | |
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| The Father Christmas Letters |
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