Thank you for viewing. This is a question-and-answer social studies memorization textbook that my child used when they were taking high school entrance exams. It comes with a red sheet so you can hide the answers. I think it's an easy-to-understand textbook with many illustrations. It's a relatively small textbook, so my child would carry it in their bag, or memorize it while lying on the sofa whenever they felt like it. It was very helpful because they could easily memorize with the red sheet. This is a textbook that was used normally, so please consider purchasing only if you understand the condition. Thank you very much.