A series filled with educational stories for children. - Titles: Kotowaza Classroom (Proverb Classroom), Zoku Kotowaza Classroom (Proverb Classroom Continued), Kanyouku Classroom (Idiom Classroom), Anshou Hyakunin Isshu (Recitation of 100 Poems) - Author: Momoko Sakura - Series: Chibi Maruko-chan - Content: Educational stories for children Thank you for looking. The books were stored in a pet-free, non-smoking home after my child read them. There is a slight crease on the front cover of Zoku Kotowaza Classroom. There is a crease around the "matoi" (banner) that Maruko-chan is holding in the fourth photo (it doesn't show up well in the photo).