● Problem & Answer Editions 2019-2021 Academic Years [Law (International Politics), Letters, Business Administration, Human Environment, Global Liberal Arts - A Method] English / Japanese History / World History / Geography / Politics & Economics / Mathematics / Japanese There are pencil markings in English, Japanese, and Politics & Economics, but they will be erased before shipping. While there may be some areas that were missed, I believe they can still be used without issue. I am also listing other reference books. A discount of 200 yen for purchasing 2 books, and 300 yen for purchasing 3 books will be applied, so please consider purchasing multiple items.