Astronomy and Space Examination Official Textbook, Grade 3: Starry Sky Expert Price: 1900 yen + tax Revised official textbook corresponding to the Astronomy and Space Examination scheduled for November 2021 and the 2022 academic year. You can acquire basic knowledge of astronomy learned up to the 3rd year of junior high school, as well as basic knowledge of space development and exploration. There are no particularly noticeable stains or tears. I believe there are no writings, but I apologize if I missed anything. For those who understand it's a used item.