{"product_id":"mental-calculation-an-art-apart-willem-bouman-9781731343444","title":"Mental Calculation, an Art, Apart","description":"Discover the world of numbers with one of world's best and fastest mental calculators, Willem Bouman. Mental calculation is a skill, and this means that significant progress can be made by practice. In this book you'll read about theories and principles aimed at guiding your practice and enriching your insight into numbers. As your training progresses you'll gain confidence in your own skills and you will be able to make impressive calculations, purely mentally, regardless of your background.\u003cbr\u003e\u003cbr\u003e\u003cb\u003eAuthor:\u003c\/b\u003e Willem Bouman\u003cbr\u003e\u003cb\u003eISBN-10:\u003c\/b\u003e 1731343442\u003cbr\u003e\u003cb\u003eISBN-13:\u003c\/b\u003e 9781731343444\u003cbr\u003e\u003cb\u003ePublisher:\u003c\/b\u003e Independently Published\u003cbr\u003e\u003cb\u003eLanguage:\u003c\/b\u003e English\u003cbr\u003e\u003cb\u003ePublished:\u003c\/b\u003e 03\/13\/2020\u003cbr\u003e\u003cb\u003ePages:\u003c\/b\u003e 282\u003cbr\u003e\u003cb\u003eFormat:\u003c\/b\u003e Paperback\u003cbr\u003e\u003cb\u003eWeight:\u003c\/b\u003e 1.09lbs\u003cbr\u003e\u003cb\u003eSize:\u003c\/b\u003e 10.00h x 7.01w x 0.59d","brand":"Willem Bouman","offers":[{"title":"Paperback","offer_id":43978496311551,"sku":"9781731343444","price":25.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0662\/2982\/9887\/files\/img_c72c6193-a04c-4f7c-90ac-a8bf59947c17.jpg?v=1683241864","url":"https:\/\/www.whiterainbookhouse.com\/products\/mental-calculation-an-art-apart-willem-bouman-9781731343444","provider":"WR Book House","version":"1.0","type":"link"}