{"product_id":"9781908482587","title":"260 Hours, Days or Weeks","description":"This book contains a total of 14,400 squares of order 5 and 3,250 squares of order 4 (17,650 in total) which all have the peculiar property of each row, column and diagonal summing to the number 260. Now instead of thinking of these squares as recreational tools I would invite the investor to use this book in the same way as an astronomer and geometer would use tables of logarithms. That is; as a reference of tables from which to quickly solve and identify the motions (vibration) of prices.","brand":"Nsingo \u0026 Company Ltd","offers":[{"title":"Default Title","offer_id":47040101908720,"sku":"9781908482587","price":99.99,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0737\/7593\/9824\/files\/9781908482587_p0.jpg?v=1763623308","url":"https:\/\/shop-qa.barnesandnoble.com\/products\/9781908482587","provider":"Barnes \u0026 Noble (DEV)","version":"1.0","type":"link"}