This book thoroughly covers junior high school mathematics from the basics and is aligned with the 2021 revised curriculum guidelines. - Title: A Book to Thoroughly Understand 3 Years of Junior High School Math in One Volume - Author: Takuya Kosugi - Publisher: Kanki Publishing - Price: 1000 yen - Content: Thoroughly covers junior high school mathematics from the basics. - Features: Aligned with the 2021 revised curriculum guidelines. Thank you for viewing. I purchased this new on Amazon and have never used it. Therefore, I am listing it as new and unused. Please refrain from purchasing if you are sensitive to items stored by a non-professional. There are no folds or writing. * I do not smoke, and I do not have any pets. Please feel free to ask any questions in the comments section (^^) Thank you for your consideration.