I use the IOBA (Independent On-Line Booksellers Association) book condition definitions
AS NEW; FINE; MINT: Without faults or defects.
NEAR FINE: a book approaching FINE (or AS NEW or MINT) but with a couple of very minor defects or faults, which must be noted.
[NOTE: From here on, there may be "+ (Plus)" or "- (Minus)" in a grade, which will mean that it is above the grade noted but not quite to the next higher grade for "+", and that it is below the grade noted but not quite to the next lower grade for "-", i.e., Very Good + (or Plus)/Very Good - (or Minus). Which means the book is better than Very Good and the dust jacket grade is less than Very Good.]
VERY GOOD: A book showing some signs of wear. Any defects or faults must be noted.
GOOD: The average used book that is totally complete (as issued) and intact. Any defects must be noted.
FAIR: A worn book that has complete text pages (including those with maps or plates) but may lack endpapers, half-title page, etc. Any defects or faults must be noted.
POOR or READING COPY: A book that is sufficiently worn that its only merit is the complete text, which must be legible. Any missing maps or plates must be noted. May be soiled, scuffed, stained, or spotted, and may have loose joints, hinges, pages, etc.
EX-LIBRARY: Must always be designated as such no matter what the condition of the
BOOK CLUB: Must always be noted as such no matter what the condition of the