These items were distributed in the classroom. I am selling the materials for three years: 2026, 2025, and 2024, as a set. As these items were brought home by the children, there may be small pencil marks or minor folds on the covers. The 2025 edition has some stains on the upper cover and back cover. I tried to rub them off, but they wouldn't come off, so I left them as they were. There are no folds or scribbles on the inside pages. I have circled any areas of concern with ○ marks, so please take a look. Size: 25 x 26 cm KUMON Publishing's "Why Why Calendar" You can enjoy one question a day, for a total of 312 "why why" questions. The calendar introduces questions on various themes such as space, Earth, daily life, the body, language, events, insects, dinosaurs, history, vehicles, and animals, along with illustrations, stimulating children's intellectual curiosity. I will ship the items in a way that minimizes folding. [Brand] KUMON Publishing [Product Name] Why Why Calendar [Contents] 1 question per day, 312 questions [Condition] Unused