First trade paperback book titled "Piers Anthony's Xanth Encyclopedia of Xanth" by Jody L. Nye, published in 1987 by Doherty Associates, LLC, Tom & Co. SIGNED by BOTH Piers Anthony & Jody L. Nye! It is part of the Tor's Crossroads Adventure Ser. The book falls under the genre of fiction, specifically science fiction, and covers a general topic within the realm of science fiction. This unique and collectible item would be a valuable addition to any book lover's library, particularly for fans of fantasy and science fiction genres.