"Why? How come? Fun! The Wonders of Science for 1st Graders" Tetsuya Murayama "Riddles for Friends, 1st & 2nd Graders: Riddles with fun features to enjoy together!" Masao Honma / Shigeki Koike This is a set of two books. They are in near-unread condition, having only been flipped through. They are in relatively good condition, but there are small folds on the cover from storage. While there are no noticeable scratches or stains, please understand that these are items stored at home before considering a purchase.