Piers Anthony Dillingham Jacob (born August 6, 1934 in Oxford, England is an English American writer in the science fiction and fantasy genres, publishing under the name Piers Anthony. He is most famous for his set in the fictional realm of Xanth. Many of his books have appeared on the New York Times Best Seller list. He has claimed that one of his greatest achievements has been to publish a book for every letter of the alphabet, from Anthonology to Zombie Lover.