A used copy of the AB Guide to Music Theory Part 1. There is wear to the edges, spine and cover. There is some creasing to the cover and there are a few age spots on the edges of the pages and on some pages at the start of the book. There is a name on the first page. There is a little creasing to a few of the pages and as far as I can tell, there is only one pen mark in the book. The pages are, on the whole, clean and tidy.