Tolkien Enterprises is a division of the Saul Zaentz Company, which in 1976 acquired certain exclusive rights to the fanciful names and characters associated with J.R.R. Tolkien's Middle Earth, as depicted in The Hobbit and The Lord of the Rings.

Houghton Mifflin is the exclusive U.S. publisher of authentic illustrated books about New Line Cinema's epic motion picture trilogy The Lord of the Rings.