A set of picture books that teach about science, nature, and society. Purchased new from a bookstore. Some books are almost unread. Some covers have minor damage, but overall they are in relatively good condition. I'm not sure if it's a complete set, but I think it's quite a comprehensive collection. As a bonus, I'll include 4 manga books. - Series Name: Exploration World - Author: Doraemon - Themes: Science, Nature, Society - Number of Volumes: 37 books + bonus ・Science World: 16 books ・Exploration World: 17 books ・Society World: 4 books ・Special Doraemon: 4 books Thank you for looking.