The product is a set of 3 Piers Anthony books from the Mode Series, including titles such as Virtual Mode, Fractal Mode, and Chaos Mode. These science fiction novels are written in English and published by Ace Science Fiction. Fans of Piers Anthony's work will enjoy delving into the unique worlds he creates within this series, exploring themes of virtual reality, fractal geometry, and chaos theory. All books are used and have significant yellowing to the pages.