☆ Brand New, Unused Set of 2 Books Regarding Mathematics I & A, I purchased it after checking the contents at a bookstore, and it has been stored on the bookshelf unused. Regarding Mathematics II & B, I purchased it online (Rakuten Books) and stored it on the bookshelf without ever looking at it. [Product Condition] Although brand new and unused, the product condition is set to "Slightly Damaged or Dirty" due to scratches on the covers and bent corners of pages. Mathematics I & A was handled and the contents were flipped through, so there are wrinkles from fingerprints on the cover and bent corners on the bottom right of the pages. (Photos 4, 5, and 6. Scratches and wrinkles are visible when held at an angle to the light, but they are difficult to capture in photos due to reflection.) Also, both books have some wear and tear from storage, such as creasing on the edges of the covers, scratches, and slight dents. (Photos 2-4) There are no writings or stains, and the contents are clean. *Please purchase only if you understand and agree to the above product condition. Please refrain from purchasing if you are sensitive to imperfections or seek perfection. Product Contents ① High School Mathematics I & A: A Thorough Understanding in One Book ② High School Mathematics II & B: A Thorough Understanding in One Book Author: Takuya Kosugi