This is a set of 7 "Waku Waku Science Books" for 2nd graders from Shinken Zemi Elementary School Course. I've collected mostly clean copies, but some may have used stickers or other attachments. As I am a private seller, please forgive any oversights in my inspection. There are many interesting things written in them, and I think they are very fun to read. I also have a set of "Waku Waku Discovery Books" for 3rd grade Challenge. Would you like to consider them together? Thank you very much.