{"product_id":"9781402733383","title":"Optical Illusion Play Pack","description":"\u003cp\u003e\u003c\/p\u003e\u003cp\u003eThese optical illusions have more magic than any others! That’s because this fun and visually enticing pack gives kids something special: The opportunity to \u003ci\u003eplay \u003c\/i\u003ewith the images, not just \u003ci\u003elook\u003c\/i\u003e at them. It’s created by the much-respected and prolific author Martin Gardner, who wrote the \"Mathematical Games” column in \u003ci\u003eScientific American\u003c\/i\u003e for more than a quarter of a century. Gardner’s numerous puzzle collections, as well as his expert writing on math and science, have made him a force to be reckoned with in the field. Packaged right inside the book are lots of punch-out cards that will enhance every illusion…plus a vinyl pouch for safely storing the cards afterwards. So when children try to figure out if the two differently shaped tables in a picture are actually the same size, they can see whether they’re right by laying a \"checkered tablecloth” over them both. Or they can pin a colorful rainbow disk to the page, spin it, and watch the colors \"disappear.” Each illusion gets an entire spread, with instructions, extra illustrations, and sometimes sidebars, too. \u003c\/p\u003e\u003cp\u003e\u003c\/p\u003e\u003cp\u003e\u003c\/p\u003e","brand":"Sterling Publishing","offers":[{"title":"Default Title","offer_id":47027919094000,"sku":"9781402733383","price":3.73,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0737\/7593\/9824\/files\/9781402733383_p0.jpg?v=1763715076","url":"https:\/\/shop-qa.barnesandnoble.com\/products\/9781402733383","provider":"Barnes \u0026 Noble (DEV)","version":"1.0","type":"link"}