Textbook to acquire the tools for accurately understanding English. - Title: Seki Masao's English Interpretation POLARIS 1 - Publisher: KADOKAWA - Price: 1,540 yen - ISBN: 9784042014680 - Level: Standard/Advanced Thank you for viewing. I have used it once, but there are no markings, and it is in good condition. Please refrain from purchasing if you are sensitive to items stored at home.