“The New Book of Optical Illusions” has been added to your cart. Continue shopping1Shopping Cart2Payment & Delivery Options3Order ReceivedProductPriceQuantitySubtotalRemove How Do You Feel? A Spectacular Compendium of Ideas, Interactive Games, Provocations, Tests, and Tricks That Explore the World of What You Feel and Why $38.99 How Do You Feel? A Spectacular Compendium of Ideas, Interactive Games, Provocations, Tests, and Tricks That Explore the World of What You Feel and Why quantity $38.99 × The New Book of Optical Illusions $24.47 The New Book of Optical Illusions quantity $24.47 × Apply Coupon Continue Shopping Update Cart Cart totalsSubtotal$63.46Shipping Local pickup Shipping to ON.Tax$3.17Total$66.63 Proceed to checkout