The Dark Powers of Tolkien: An illustrated Exploration of Tolkien's Portrayal of Evil, and the Sources that Inspired his Work from Myth, Literature and History
A Dictionary of Tolkien: An A-Z Guide to the Creatures, Plants, Events and Places of Tolkien's World
Journeys of Frodo: An Atlas of J. R. R. Tolkien's The Lord of the Rings: Atlas
Star Wars Encyclopedia of Starfighters and Other Vehicles: Discover More Than 230 Vehicles From a Galaxy Far, Far Away!
Encyclopedia of American National Parks
What Is the Big Bang Theory and Why Does It Matter? - Scientific Kid's Encyclopedia of Space - Cosmology for Kids - Children's Cosmology Books
