Ballantine Adult Fantasy Series
"The Road Goes Ever On" was not a mass market paperback
In "Imaginary Worlds: The Art of Fantasy", Lin Carter numbered the books in the series that had been published so far from 1 to 57.
| X | J. R. R. Tolkien | The Hobbit | |
| X | J. R. R. Tolkien | The Fellowship of the Ring | |
| X | J. R. R. Tolkien | The Two Towers | |
| X | J. R. R. Tolkien | The Return of the King | |
| X | J. R. R. Tolkien | The Tolkien Reader | |
| X | E. R. Eddison | The Worm Ouroboros | |
| X | E. R. Eddison | Mistress of Mistresses | |
| X | E. R. Eddison | A Fish Dinner in Memison | |
| J. R. R. Tolkien and Donald Swann | The Road Goes Ever On | ||
| X | Mervyn Peake | Titus Groan | |
| X | Mervyn Peake | Gormenghast | |
| X | Mervyn Peake | Titus Alone | |
| X | David Lindsay | A Voyage to Arcturus | |
| X | Peter S. Beagle | The Last Unicorn | |
| X | Peter S. Beagle | A Fine and Private Place | |
| X | J. R. R. Tolkien | Smith of Wootton Major and Farmer Giles of Ham | |
| X | Lin Carter | Tolkien: A Look Behind "The Lord of the Rings" | |
| X | E. R. Eddison | The Mezentian Gate | |
| X | 1 | Fletcher Pratt | The Blue Star |
| X | 2 | Lord Dunsany | The King of Elfland's Daughter |
| X | 3 | William Morris | The Wood Beyond the World |
| X | 4 | James Branch Cabell | The Silver Stallion |
| X | 5 | George MacDonald | Lilith |
| X | 6 | Lin Carter | Dragons, Elves, and Heroes |
| X | 7 | Lin Carter | The Young Magicians |
| X | 8 | James Branch Cabell | Figures of Earth |
| X | 9 | Hannes Bok | The Sorcerer's Ship |
| X | 10 | Fletcher Pratt and L. Sprague de Camp | Land of Unreason |
| X | 11 | James Branch Cabell | The High Place |
| X | 12 | Hope Mirrlees | Lud-in-the-Mist |
| X | 13 | Lord Dunsany | At the Edge of the World |
| X | 14 | George MacDonald | Phantastes |
| X | 15 | H. P. Lovecraft | The Dream-Quest of Unknown Kadath |
| X | 16 | Clark Ashton Smith | Zothique |
| X | 17 | George Meredith | The Shaving of Shagpat |
| X | 18 | Evangeline Walton | The Island of the Mighty |
| X | 19 | Katherine Kurtz | Deryni Rising |
| X | 20 | William Morris | The Well at the World's End, Vol 1 |
| X | 21 | William Morris | The Well at the World's End, Vol. 2 |
| X | 22 | Lin Carter | Golden Cities, Far |
| X | 23 | Hannes Bok | Beyond the Golden Stair |
| X | 24 | Poul Anderson | The Broken Sword |
| X | 25 | William Hope Hodgson | The Boats of the "Glen Carrig" |
| X | 26 | H. P. Lovecraft | The Doom that Came to Sarnath and Other Stories |
| X | 27 | James Branch Cabell | Something About Eve |
| X | 28 | Joy Chant | Red Moon and Black Mountain |
| X | 29 | Clark Ashton Smith | Hyperborea |
| X | 30 | Lord Dunsany | Don Rodriguez: Chronicles of Shadow Valley |
| X | 31 | William Beckford | Vathek |
| X | 32 | G. K. Chesterton | The Man Who Was Thursday |
| X | 33 | Evangeline Walton | The Children of Llyr |
| X | 34 | James Branch Cabell | The Cream of the Jest |
| X | 35 | Lin Carter | New Worlds for Old |
| X | 36 | Lin Carter | The Spawn of Cthulhu |
| X | 37 | Edmund Cooper and Roger Lancelyn Green | Double Phoenix |
| X | 38 | William Morris | The Water of the Wondrous Isles |
| X | 39 | F. Marion Crawford | Khaled |
| X | 40 | H. Rider Haggard and Andrew Lang | The World's Desire |
| X | 41 | Clark Ashton Smith | Xiccarph |
| X | 42 | C. J. Cutcliffe Hyne | The Lost Continent |
| X | 43 | Lin Carter | Discoveries in Fantasy |
| X | 44 | James Branch Cabell | Domnei: A Comedy of Woman-Worship |
| X | 45 | Ernest Bramah | Kai Lung's Golden Hours |
| X | 46 | Katherine Kurtz | Deryni Checkmate |
| X | 47 | Lord Dunsany | Beyond the Fields We Know |
| X | 48 | Arthur Machen | The Three Impostors |
| X | 49 | William Hope Hodgson | The Night Land, Vol. 1 |
| X | 50 | William Hope Hodgson | The Night Land, Vol. 2 |
| X | 51 | Evangeline Walton | The Song of Rhiannon |
| X | 52 | Lin Carter | Great Short Novels of Adult Fantasy I |
| X | 53 | George MacDonald | Evenor |
| X | 54 | Ludovico Ariosto | Orlando Furioso: The Ring of Angelica, Vol. 1 |
| X | 55 | Lord Dunsany | The Charwoman's Shadow |
| X | 56 | Lin Carter | Great Short Novels of Adult Fantasy Vol. II |
| X | 57 | William Morris | The Sundering Flood |
| X | (58) | Lin Carter | Imaginary Worlds: the Art of Fantasy |
| X | (59) | Clark Ashton Smith | Poseidonis |
| X | (60) | Sanders Anne Laubenthal | Excalibur |
| X | (61) | Katherine Kurtz | High Deryni |
| X | (62) | Poul Anderson | Hrolf Kraki's Saga |
| X | (63) | H. Rider Haggard | The People of the Mist |
| X | (64) | Ernest Bramah | Kai Lung Unrolls His Mat |
| X | (65) | Lord Dunsany | Over the Hills and Far Away |
| X | H. Warner Munn | Merlin's Ring | |
| X | Evangeline Walton | Prince of Annwn |