Pinpon Work ☆ published by Rieikai. From December to October for new Year 1 students to Year 1 students. Two books each month, for a total of 22 books. The originals are in an unwritten state. They were placed in clear files and checked with a whiteboard marker for repeated learning. They have been cut. There are some pages with wrinkles and folds. For those who understand that these are used items kept by amateurs and used by children. This is a good textbook that covers each unit. Instant purchase is OK. Thank you.