Price: 2530 yen (2300 yen + 10% tax) Author: Satoshi Sugihara, editor ISBN: 978-4-325-26048-6 Publisher: Kyogakusha There is some soiling (writing). Marks are made on incorrect question numbers, the time taken to solve the problems is written, and lines are drawn on important parts of the answer key. I don't think there is any writing (calculations, etc.) that would interfere with solving the problems. There are some scratches, as shown in the images. Thank you for looking.