What is Cognitive Science? Ernest Lepore (Editor), Zenon Pylyshyn (Editor) ISBN: 978-0-631-20494-7 Paperback 448 pages October 1999, Wiley-Blackwell US $62.95 Add to Cart This price is valid for United States. Change location to view local pricing and availability. This is a Print-on-Demand title. It will be printed specifically to fill your order. Please allow an additional 2-3 days delivery time. The book is not returnable.