"Masakazu Kimura's Book on Writing Interesting Math Answers" By Masakazu Kimura ◆ This product is used, so there may be signs of wear. 　 Please be sure to check the product images. ◆ No purchase application is required. 　 Instant purchase without comments is also welcome! ◆ We will ship within 48 hours (preferably within 36 hours) of purchase. 　 We will be sure to contact you with a message after shipping. ◆ We will basically ship via Yu-Yu Mercari Bin. 　 Shipping is free (seller pays). 　 ※ In some cases, we may use Eco Mercari Bin. ◆ We also sell books that we no longer read. 　 You might find a bargain! 　 Please take a look from the tag below. 　 #HonnoRi'sRecommendedBooksList