This is a book that any fan of JRR Tolkien should not be without, as it is an indespensible guide that covers everything within Tolkien's world of Middle-Earth and the undying lands. This volume is filled with beautiful illustrations both paintings and origional sketches (from the Tolkien Bestiary) that transport you to the heart of middle-earth, bringing his captivatingly creative and unique creatures to life. Tolkien's cosmology is explained in extrordinary depth and detail, covering all aspects of the major subject areas; history, geography, sociology, natural history and biography in indavidual chapters/ sections. The colourful splendour and vastness of JRR Tolkien's world is brought to life with all the maps, geneologies and time charts, illustrations and drawings of people, places and events making it all so drematic and real. This referance book to Tolkien's world is aproachable, readable and really easy to understand and something that is an indespensable edition to your collection, which i could not be without. Tolkien's creation in its entirety is extremely complex and detailed and for those readers who have read his works, it can be still confusing especially when it comes to placing all the pieces of the puzzle together. This book makes it simple and explains how JRR Tolkien created and designed his world from the very begining, with the creation of Arda and how the earth changed over time right from year 1 to 40,000+ (historic time). Each place in Middle-Earth is listed in an easy to use glossary, from 'Aglarond' to 'Zirak-Zigil' all complemented with detailed acompanying illustrations. There are genealogical charts of peoples of Arda (including Men, Hobbits, Dwarves, Elves and Ainur) and a dictionary of creatures, plants, spirits, ghosts, demons and monsters. This is a book that helped to make everything clear and understandable and i was hence then able to read JRR Tolkien's works with a much deeper understanding and comprehension. The only element that was not included within this encyclopedia was the languages that Tolkien created such as Elvish and the written hand like letters, runes and numbers. Anyone who enjoys the works of Tolkien (including The Hobbit, The Silmarillion, The Lord of the Rings ectetera) will find this book really useful, as well as interesting and utterly facinating to those readers who want to learn more about Middle-Earth and the Undying Lands in more detail.