New Course Chart System Mathematics 2 Geometry Edition, published by Suken Shuppan New Course Chart System Mathematics 2 Algebra Edition, published by Suken Shuppan Price is for the set. I haven't used them because I'm in the humanities. Regarding the textbooks, there are no writings inside, and I think they are in a clean condition, but please refrain from purchasing if you are sensitive to this. *The cover of the answer key has some minor scratches from storage. The inside is clean. *There is a name written on it, which I will erase with correction tape.