Who published works of J. R. R. Tolkien after his death?

Christopher John Reuel Tolkien (born 21 November 1924) is the third son of the author J. R. R. Tolkien (1892–1973), and the editor of much of his father's posthumously published work. He drew the original maps for his father's 'The Lord of the Rings', which he signed C. J. R. T.

J. R. R. Tolkien wrote a great deal of material connected to the Middle-earth legendarium that was not published in his lifetime. He had originally intended to publish 'The Silmarillion' along with 'The Lord of the Rings', and parts of it were in a finished state when he died in 1973, but the project was incomplete. Tolkien once referred to his son as his "chief critic and collaborator", and named him his literary executor in his will.

Christopher Tolkien organized the masses of his father's unpublished writings, some of them written on odd scraps of paper a half-century earlier. Much of the material was handwritten; frequently a fair draft was written over a half-erased first draft, and names of characters routinely changed between the beginning and end of the same draft. In the years following, Christopher Tolkien worked on the manuscripts and was able to produce an edition of The Silmarillion for publication in 1977; his assistant for part of this work was Guy Gavriel Kay who became a noted fantasy author himself.