This is "Manga for Understanding! Logical Thinking Puzzles to Develop Through Play Before Age 10," which helps children develop their "thinking skills" while having fun. My child didn't read it much, perhaps because it wasn't the right age, so the exterior has some folds and scratches, but the inside is clean with no writing. The stickers are also unused. I apologize if I missed anything. Recommended for elementary school students in the lower to middle grades. - Title: Logical Thinking Puzzles - Target Age: Up to 10 years old - Format: Manga (Comic) - Price: 1500 yen ◆◇ Recommended Points of This Book ◇◆ ✨ It's a puzzle format that you can get absorbed in, like a game or quiz. ✨ It naturally trains "logical thinking skills," which involve organizing information and thinking systematically. This skill is the foundation for all subjects, such as math and Japanese. ✨ Problems are presented in manga format, so even children who are not good at word problems can enjoy the challenge. ✨ It's a book that will encourage your child to go to their desk on their own, without you having to say "study!" Please consider purchasing if you understand that this is a used item. Please refrain from purchasing if you are concerned about minor details. Thank you for looking.