This is an 8-book set of reference books for elementary school students (upper grades) and up. * Chibi Maruko-chan's Perfect Score Get Series * More Idioms Classroom, Kanji Dictionary, Difficult-to-Read Kanji Classroom * Kanji Learned in Elementary School * Mystery Solving: Math Detective Zero * Summary Master: Elementary & Junior High School Entrance Exams: Japanese History Chronology * Doraemon Science World: The Mysteries of the Body and Life As shown in the 7th photo, only the Summary Master Chronology has writing in it. The rest have no noticeable stains or damage. Kanji Kentei (Kanji Proficiency Test) / Junior High School Entrance Exams