The Ultimate IQ Challenge By Carter, Philip J. (EDT), Feenstra, Marcel (EDT), Harding, Christopher P., and Harding, Christopher P. (EDT) Books / Paperback Books › Psychology › General ISBN: 0706372328 / Publisher: Ward Lock Ltd, August 1994 Price Starting at $5.38 Free Shipping Send to a friend Add to Wishlist Below is a list of products arranged by condition. Select the quantity of the product you desire and click the "Add" button. Used - Good Good condition. Stamped on inside. $5.38 1 in Stock at Warehouse Quantity Add Free Shipping to continental U.S. OR $1.00 per item discount if shipped to store. Reviews Goodreads reviews for The Ultimate IQ Challenge