I am also selling problem sets for junior high school grades 1-3. Winter break is coming up soon, so these can be used at home. If you leave a comment, I can lower the price if you request to bundle two books. There are no markings, but there is some discoloration around the edges of the book due to storage. Please check photos 3 and 4. The listed price has been reduced. Thank you for your understanding. - Title: Easy-to-Understand Junior High 1 Mathematics - Publisher: Bun'eido - Features: Starts with the basics Includes a separate answer booklet Thank you for looking.