Purchasing this along with the "Sansu Shunka-to-to Keisan" (Arithmetic Spring, Summer, Autumn, Winter Calculations) also listed will complete a full year's worth of materials. This is a set of three arithmetic textbooks for junior high school entrance exams. - Title: Arithmetic (1) (2) (3) Set - Publisher: Mabuchi Kyōshitsu - Grade Level: For junior high school entrance exams - Subject: Arithmetic - Format: Textbook While there is basically no writing in the books, there are some marks for checking answers, etc. I don't think it will affect solving the problems, but please understand that these are used items. There is a name written on the books, which will be either cut out or blacked out before shipping.