Dekiru Otona no Bunshōryoku Kyōshitsu (Classroom for Adults' Writing Skills) by Yosuke Kobayashi Thank you for viewing. There are no markings inside, but the cover has stains, scratches, and folds, indicating use. I have checked the item from a layman's perspective, so there is a possibility that I have overlooked some stains. Please understand and accept this before purchasing. Also, I will check the item and add more photos if needed, so please feel free to ask any questions in the comments. Please be sure to read my profile.