Purchased new and stored on a bookshelf without being used. The pages inside are clean with no writing or stains. However, due to storage, there are some cover imperfections such as bending, dents, wrinkles, and scratches (see photos). Please refrain from purchasing if you are sensitive to these details. - Title: Koko de Wakaru Mathematics II + B (Sigma Best) - Publisher: Bun'eido - ISBN: 978-4-578-24189-8