This is a book used by a child who struggled with math during junior high school. There are no markings, but please forgive me if I missed anything. There is a crease on the cover. Please only purchase if you understand that this is a home-stored item. Junior High School Gakken Gakken Revised edition of a reference book that explains how to solve junior high school math problems in detail. - Title: Understanding Junior High School Math Step by Step. - Price: 1,265 yen - Publisher: Gakken Plus - Revised Edition: Revised Edition Thank you for looking.