This item has been at my parents' house for a long time. I am selling it because I no longer need it. There are some scratches on the cover, but the inside is clean and I believe there are no problems with its use. As shown in photos 6 and 7, it comes with a semi-transparent case. - Title: Structural Mechanics Formula Collection - Publisher: Japan Society of Civil Engineers Please check the photos and only purchase if you understand that this is a used book. Please refrain from price negotiations. Instant purchase is OK, and I will ship via anonymous delivery.