This is an old new book that has laid around and been reshelved several times the paper back cover is twice creased on front by me from not carefully opening to get data, and by same accident a second bottom portion of front edge has crease that is only noiticeable when book is opened. The is the 1976 edition and is new but shop worn a little. I share my images with Amazon you get what you see. It is worth 7 bucks just to send it.