Condition ratings for books are as follows:

New / "new" / new, never read

Excellent/"ex" / in new, or like-new shape

Very Good/"vg" / has been read once or twice, but well cared for

Good/"gd" / used, but not abused...some signs of wear

Fair/"fr" / basically intact and readable, but not good cosmetically

Poor/"pr" / cover damage, torn or marked pages, still readable