Why? How? Series A set of 4 books for 1st and 2nd graders. ① Why? How? 1st Grade ② The Wonders of Society: Why? How? 1st Grade ③ Why? How? 2nd Grade ④ The Wonders of Society: Why? How? 2nd Grade There is some creasing on the covers (see photo 3). The inside pages have no folds or writing. Please understand that these are used items before purchasing (^^) ※ No smokers in the house ※ No pets ※ Shipping may be changed from Rakuraku Mercari Bin to Yuuyu Mercari Bin or vice versa. Please understand. ※ Basically, items will be shipped in simple packaging. Recycled packaging may also be used. Also, we cannot accept requests for specific shipping methods. ※ If you wish to combine items with other products, please let us know before purchasing. ※ Immediate purchase is prioritized. ※ We do not sell individual books. If you have any questions, please ask in the comments section (^^)♪ I am also selling various other books♪ Here are the products↓ #BooksForSaleHere Reading Oral reading Mystery Takahashi Shoten