27 books including the Doraemon Study Series. Educational materials for elementary school students with fun illustrations. - Contents: Study guides for Japanese history, geography, arithmetic, Japanese language, etc. - Target age: Elementary school students - Features: Learn through fun illustrations and stories Thank you for viewing. I purchased these through Mercari for over 10,000 yen. As they were actually used, there are many instances of fading, dirt, stains, and folds. Please refrain from purchasing if you are looking for pristine condition items. I bought these so my child could study in a fun way, rather than fighting over subjects they were interested in or struggling with. I figured quantity over quality would be sufficient since I didn't know which ones my child would take to. Actually, I have other textbooks as well, but my child still likes them, so I'm keeping those. Doraemon Study Guides