{"product_id":"trachtenberg-speed-system-of-basic-mathematics-book-rudolph-mcshane-9780313232008","title":"The Trachtenberg Speed System of Basic Mathematics","description":"The complete system of the Trachtenberg method of mathematics which makes possible high-speed arithmetical calculations with a remarkable degree of accuracy.    This method is not only speedy but simple. It looks like magic, but the rules are based on sound logic.","brand":"WoB","offers":[{"title":"US \/ VERY_GOOD \/ SBYB","offer_id":50037641969937,"sku":"CIN0313232008VG","price":0.0,"currency_code":"GBP","in_stock":false},{"title":"US \/ GOOD \/ SBYB","offer_id":51424429375761,"sku":"CIN0313232008G","price":0.0,"currency_code":"GBP","in_stock":false},{"title":"GB \/ GOOD \/ INTERNAL","offer_id":51568605626641,"sku":"GOR014331967","price":22.7,"currency_code":"GBP","in_stock":false},{"title":"GB \/ VERY_GOOD \/ INTERNAL","offer_id":51570052235537,"sku":"GOR003586679","price":8.9,"currency_code":"GBP","in_stock":false},{"title":"GB \/ NEW \/ INGRAM","offer_id":52686064648465,"sku":"NLS9780313232008","price":84.39,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0784\/4072\/6801\/files\/0313232008.jpg?v=1751441961","url":"https:\/\/www.worldofbooks.com\/en-gb\/products\/trachtenberg-speed-system-of-basic-mathematics-book-rudolph-mcshane-9780313232008","provider":"World of Books ","version":"1.0","type":"link"}