This is a problem book for social studies specifically designed for junior high school entrance exams, containing the highest level of questions. - Title: Junior High School Entrance Exam Highest Level Problem Book: Social Studies - Author: Hideki Shimoji - Publisher: Bun'eido - ISBN: 9784578215356 Thank you for viewing. It is in very clean condition with no writing. The answer key has not been removed from the back. I believe this is the highest level content among commercially available social studies problem books for junior high school entrance exams.