David Day - A Guide to Tolkien David Day's guide is an informative guide to Tolkien's Middle-Earth with entries listed in alphabetical order and lengthy articles on more complex subjects encompassing information from the entire of the very extensive Tolkein mythos. A highly useful resource whether you're reading his books, watching the films, or indeed, even playing games. Many times whilst playing Lord of the Rings Online I have turned to this knowledgable tome for a more indepth understanding of the material.