{"product_id":"pocket-puzzlers-optical-illusions-9780806949932","title":"Pocket Puzzlers: Optical Illusions","description":"\u003cp\u003eSeeing shouldnt always be believing... It all depends on how you look at it--every one of these drawings has a built-in \"deception.\" For example  in this picture how many cubes are there: 7 or 8? Count again: if youre focusing on the black tops  youll come up with 8  but if your eye is on the white bottoms  youll find 7 cubes. Some images show two things in one  others confound your perception so you wont be able to judge size  and still more seem to sparkle and pulse. You wont be able to take your eyes off them! 96 pages  86 b\/w illus.  4 x 5.\u003c\/p\u003e","brand":"My Store","offers":[{"title":"Default Title","offer_id":45650485248053,"sku":"ByrdShop_0806949937","price":67.43,"currency_code":"USD","in_stock":true}],"url":"https:\/\/atxbooks.com\/products\/pocket-puzzlers-optical-illusions-9780806949932","provider":"ATX Books","version":"1.0","type":"link"}