Typical Usage:
Fine Very Good (F/VG) - fine book in very good condition.
Fine (F) - No defects, little usage. Older books may show minor flaws.
Very Good (VG) - Shows some signs of wear and is no longer fresh. Attractive.
Good (G) - The average used book with all pages present. Books with loose bindings, highlighting, cocked spine, torn dust jackets, can fall into this category.
Fair (FR) - Obviously well-worn and handled but no text pages are missing, however, it may be without endpapers or a title page. There might be markings, but they do not interfere with readability.
Poor (P) - All text is legible but may be soiled and have binding defects. Reading copies and binding copies fall into this category.