{"product_id":"mathematical-puzzles-9781568812014","title":"Mathematical Puzzles","description":"\u003cp\u003eCollected over several years by Peter Winkler, of Bell Labs, dozens of elegant, intriguing challenges are presented in Mathematical Puzzles\u003c\/p\u003e","brand":"Peter Winkler","offers":[{"title":"Default Title","offer_id":50976718750038,"sku":"9781568812014","price":31.52,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0886\/3206\/6390\/files\/9781568812014.jpg?v=1754208866","url":"https:\/\/www.englishbook.pt\/products\/mathematical-puzzles-9781568812014","provider":"Bookshop","version":"1.0","type":"link"}