The Legendarium

J.R.R. Tolkiens Legendarium: The Complete Translation of the Red Book of Westmarch by the Hobbits of Middle-earth is a compilation book compiling all of Tolkien's Middle-earth literature.

Book Description
The book is made to resemble the Red Book of Westmarch, an ancient text which Tolkien stated stories like The Hobbit and The Lord of the Rings was translated from, which was written by hobbits Bilbo and Frodo Baggins. Throughout the text are illustrations made by the hobbits.

The Lord of the Rings: a Translation of The Down Fall of the Lord of the Rings and the Return of the King by Frodo Baggins

 * The Fellowship of the Ring
 * The Two Towers
 * The Return of the King

Appendices: Stories and Background Information Compiled by Samwise Gamgee (with further analyses by Christopher Tolkien)

 * The Lord of the Rings Appendices
 * Unfiniished Tales of Numenor and Middle-earth
 * The History of Middle-Earth
 * The Book of Lost Pales, Part I
 * The Book of Lost Tales, Part II
 * The Lays of Beleriand
 * The Shaping of Middle-earth
 * The Lost Road and Other Writings
 * The Return of the Shadow (The History of The Lord of the Rings Volume 1)
 * The Treason of Isengard (The History of The Lord of the Rings Volume 2)
 * The War of the Ring (The History of The Lord of the Rings Volume 3)
 * Sauron Defeated (The History of The Lord of the Rings Volume 4)
 * Morgoth's Ring (The Later Silmarillion Volume 1)
 * The War of the Jewels (The Later Silmarillion Volume 2
 * The Peoples of Middle-earth

Indices
Also scattered through the text of The Hobbit and The Lord of the Rings are poems such as The Road Goes Ever On, Bilbo's Last Song, and those found in The Adventures of Tom Bombadil.