The Languages of Tolkien's Middle-Earth: A Complete Guide to All Fourteen of the Languages Tolkien Invented - J. R. R. Tolkien

This is the book on all of Tolkien's invented languages, spoken by hobbits, elves, and men of Middle-earth -- a dicitonary of fourteen languages, an English-Elvish glossary, all the runes and alphabets, and material on Tolkien the linguist.