Get a great deal with bulk purchases! For those who purchase multiple books I have listed, I will offer the following discounts: * Buy 2 books together and get 【100 yen off】 the total price. * Buy 3 books together and get 【300 yen off】 the total price. * Buy 4 books together and get 【500 yen off】 the total price. If you would like to take advantage of this, please 【comment before purchasing】. I will create a dedicated page for you. Feel free to ask any questions! Please also take a look at my other listings! Of course, I also sell individual books. Thank you for your understanding. A business book explaining how to grow a team tenfold through the power of quantification. * Author: Yoshihiro Iwata * Title: The Magic of Quantification * Publisher: SB Creative * ISBN: 1920303001802 Thank you for viewing. Please refrain from purchasing if you are concerned about the fine condition of the item, as it is a used item. Also, I do not have any pets, and I am a non-smoker. Please purchase only if you understand.