Atlas Of Middle-Earth: The Essential Guide to the Geography of the World of The Lord of the Rings by Karen Wynn Fonstad

The Atlas of Middle-earth by Karen Wynn Fonstad is widely considered the definitive cartographic companion to the works of J.R.R. Tolkien. Written by an academic cartographer, the book treats Tolkien's world as a real geographical entity, applying actual cartographic and geological principles to map the landscapes of The Silmarillion, The Hobbit, and The Lord of the Rings.