The Lord of the Rings: The Return of the Kings (ASIN B000KIGTZC) is a rare booklet guide to the production (1997 - 2003) of Peter Jackson's The Lord of the Rings movie trilogy, written by HarperCollins editor Chris Smith and published in 2003.
Chris Smith wrote during the same time The Lord of the Rings: Weapons and Warfare, a longer guide to the film trilogy's cultures and artifacts.