I have 9 copies of this. The Buy-It-Now is for a single copy. Only copy #2 has markings--one lesson done in pencil. The rest are unused. All have minor shelf wear to covers. Interiors are pretty crispy still. I'm happy to combine shipping to save you money, so check out my other auctions! Great books for low prices! I tend to ship quickly, so let me know asap after your auction ends if you have other items you want in the same shipment—and don’t pay until you receive your revised invoice including the lower shipping.