The Lord of the Rings by John Ronald Reuel Tolkien.

"The Lord of the Rings"
Geoge Allen & Unwin Ltd
Language: English
Published in 1974, Fourteenth George Allen & Unwin Ltd edition.
The original George Allen & Unwin Ltd one paperback volume edition was published in 1968.
Contains The Fellowship of the Ring, The Two Towers and The Return of the King in one volume of 1077 pages.
"This one-volume, paperback edition of The Lord of the Rings contains the complete text of the revised edition of 1966. The index and all but one of the numerous appendices have been omitted. Though they contain much information that has proved very interesting to many readers, only a small part is necessary to the reading of the tale. They may still be found in the standard hardback edition where they occupy the last 130 pages of The Return of the King."