A set of science and social studies textbooks for elementary school students in grades 4-6. Due to long-term home storage, there are some faded and folded areas. The inside is relatively clean, I think. For those who understand that these are used items, thank you. - Title: Wakaru Rika (Understanding Science) - No cover - Title: Wakaru Shakai (Understanding Social Studies) - Cover included, with scribbles on the back - Publisher: Obunsha - Target Grade Level: Elementary school grades 4-6 - Features: Study guides Thank you for looking.