Please check my profile before purchasing. ⚠️Please refrain from purchasing if you have multiple negative ratings or if you have a rating of 0. Please check the photos and product description, and if you have no questions, you can buy it immediately. I purchased this new and read it once. As this is a used item, please understand that there may be some folds and scratches. Please only purchase if you are okay with this. I will ship using the cheapest method. Packaging will only be waterproof. I am not responsible for any damage during shipping, so please understand. Returns are not accepted for any reason, so if you have any concerns, please be sure to ask questions in the comments beforehand. ‼️Attention‼️ Please understand that there may be oversights due to amateur inspection. Please refrain from purchasing if you do not understand used items. Everything shown in the photos will be shipped. If there is a discrepancy between the product description and the photos, the photos take precedence. (About Shipping and Packaging) Depending on the situation, I will use either Yu-Yu Mercari Delivery or Raku-Raku Mercari Delivery. Because of the simple packaging, I will pack with minimal cushioning material and ship in an envelope. I may use recycled cardboard and packaging materials. Immediate purchase is OK; it's first-come, first-served, not by comment order. I do not offer exclusive listings or holds. #HirokoOchiai #Ochiai_Hiroko #Book #Nature/MedicalScience/Health