A collection of puzzles that allows you to learn about shapes, angles, and area while having fun. - Title: Origami Geometry Puzzles - Target age: Elementary school students - Contents: Problems ranging from shapes, angles, and area to fractions and multiplication - Number of problems: 50 Thank you for viewing. This item has been stored at home. The cover shows signs of aging, such as soiling, but the inside is in good condition. I have attached photos, but there was one spot with pencil writing, which I erased with an eraser, leaving a visible trace. Otherwise, there were no other writings found. This is being sold as a used item. Please refrain from purchasing if you are sensitive to imperfections, as this is a personal inspection. Thank you for your understanding.