Many pages have highlighting within them. Please purchase only if you understand the condition. - Mathematics That's So Interesting It'll Keep You Up at Night, Susumu Sakurai, with highlighting - Super Mathematics That's So Interesting It'll Keep You Up at Night, Susumu Sakurai, with highlighting - Premium Mathematics That's So Interesting It'll Keep You Up at Night, Susumu Sakurai, with highlighting - Anatomy That's So Interesting It'll Keep You Up at Night, Takeo Sakai - Elementary Particles That's So Interesting It'll Keep You Up at Night, Kaoru Takeuchi, with highlighting Everything in the photos is included. There are no smokers in the family, and we do not have any pets. We do not sell items individually. Immediate purchase is OK. Even if there are comments or negotiations in progress, we will prioritize those who purchase immediately. Packaging will be done using宅配袋 (delivery bags), bubble wrap, or recycled cardboard or paper bags. We will ship within 48 hours of purchase via Yu-Yu Mercari Delivery or Rakuraku Mercari Delivery. 【Notes】 - Photos of the items are taken with a smartphone, and the colors may differ from the actual product. - Everything in the images is included. If you have any questions about the presence or absence of accessories, please feel free to ask before purchasing. - Since these items were received from acquaintances or purchased used, we do not know the purchase date or frequency of use. - Please be sure to check the condition in the photos, and if you have any concerns, please ask questions. Returns are not possible after the receipt evaluation, so please be careful. - The condition of the product may be perceived differently by different people. Please understand that these are used items. - We do not have specialized knowledge about the products, but we will answer to the best of our ability, so please feel free to ask questions.