Pygmalion Problem Collection Started using it from age 3 for elementary school entrance exams! There are some problem sets that I also used after entering elementary school, but I am selling them now that I have graduated. Suitable for ages 3 to around 7-8 years old. Can be used continuously for a long time! I repeatedly copied and used the materials. There are no writings inside, but there are a few books with pencil marks on the front and back covers, and stickers on the covers. Please consider purchasing if you understand the above. There are 40 books in total, but only 1 and 3 are missing, so I am selling 38 books. Kyo Ito Price: ¥700 + tax #KyoIto #Kyo_Ito #book #society/education_and_learning Please refrain from purchasing if you are sensitive to items stored at home. Thank you.