"Why? How come? Fun! The Wonders of Science for 2nd Graders" "Why? How come? The Wonders of Society for 2nd Graders" "Why? How come? The Wonders of the Heart" "Continued. Why? How come? The Wonders of the Heart" Tetsuya Murayama Price: ¥800 - ¥900 A set of 4 books from the "Why? How come?" series that answers questions for 2nd graders. I am also selling other books in the series, so please request if you would like to purchase them together! Instant purchase is welcome. Please check the photos for signs of use, such as tears and folds. #TetsuyaMurayama #Tetsuya_Murayama #book #Lifestyle/Hobbies & Entertainment