Educational 6-volume set for learning natural science. - Series Name: Science Album - Title: Water: The Secrets of Water - Title: Clouds and Weather - Author: Nobuhiro Sakamoto - Number of Volumes: 6 - Language: Japanese - Target Audience: Elementary School Students - Contents: Educational content related to natural science This is over 30 years old. There are no tears or writing, but there are stains. *Photos are attached. Thank you for looking.