{"product_id":"brainstrains-great-color-optical-illusions-1","title":"Brainstrains: Great Color Optical Illusions","description":"Puzzles in living color—with a \"trickster\" personality out to confound your eyes. A vivid array of optical illusions will have you doing double-takes as they seem to deceive perspective, shift shade, change pattern, and make visual magic. Think you know what's in a picture? Blink and check closely once again, and it's become something else! \u003cbr\u003e\u003cbr\u003e· See that portrait of a young girl? Take another look— it shows her grandmother, too! Can you find both of them?\u003cbr\u003e\u003cbr\u003e· Carefully examine a real postage stamp of Daniel; when you turn it upside down, you'll notice something unexpected...\u003cbr\u003e\u003cbr\u003ePlus: figure out the secret in the landscape, step into a third dimension through color's fantastic effects, and more. Even before you reach the very last image, you'll know that what you see isn't necessarily what you get!","brand":"bookshop.lol","offers":[{"title":"Thryft - Used (Like New)","offer_id":42502277496910,"sku":"9780806988139","price":5.9,"currency_code":"SGD","in_stock":false},{"title":"Thryft - Used (Very Good)","offer_id":42502277529678,"sku":"9780806988139","price":3.9,"currency_code":"SGD","in_stock":false},{"title":"Thryft - Used (Good)","offer_id":42502277562446,"sku":"9780806988139","price":3.9,"currency_code":"SGD","in_stock":false},{"title":"Thryft - Used (Well Read)","offer_id":42502277595214,"sku":"9780806988139","price":3.9,"currency_code":"SGD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0645\/3857\/4926\/files\/2103668_c823a9f7-6686-4db8-8d2b-94343ca81229.jpg?v=1747357139","url":"https:\/\/bookshop.lol\/products\/brainstrains-great-color-optical-illusions-1","provider":"bookshop.lol","version":"1.0","type":"link"}