+ wishlist Add to Cart The item has been added Author: Barry R. Clarke Newton's Puzzles: Science and Logic Puzzles Inspired by the Brilliance of Sir Isaac Newton (Sirius Classic Puzzles) [9781398836150] List Price As Low as $12.99 Format: Paperback
+ wishlist Add to Cart The item has been added Author: Barry R Clarke Challenging Logic Puzzles [9781402705410] List Price As Low as $7.95 Format: Paperback
+ wishlist Pre-Order Now Author: Barry R. Clarke Tesla Puzzles: An Electrifying Collection Inspired by the Visionary Scientist, Nikola Tesla (Sirius Classic Puzzles) [9781398867321] List Price As Low as $12.99 Format: Paperback