Unused, but stored at home. It was kept in a dark place, so I think it's in beautiful condition without any yellowing or folds. "Thinking Skills Grow Rapidly! Arithmetic Brain Puzzles for Elementary School Grades 1, 2, and 3" Masanobu Takahama Price: ¥900 #MasanobuTakahama #Book #Society/Education/Learning #ForElementarySchoolStudents #Arithmetic #Calculation #Puzzle #ReferenceBook #Drill #Calculation