Book Condition Grades, Explained
Two copies of the same book can differ in price by 10x based on condition alone. Yet condition grading is self-reported by sellers, the vocabulary is inconsistent across sites, and "Good" — confusingly — means well below average. Here's how to read grades like a dealer.
The standard scale
Serious booksellers use a grading vocabulary standardized by the antiquarian trade (popularized by AB Bookman's Weekly in 1949 and used by ABAA dealers today):
| Grade | What it means |
|---|---|
| As New / Mint | Exactly as published. No flaws, unread. Rarely used honestly. |
| Fine (F) | Approaches As New — complete, clean, tight, no defects — but may have been carefully read. No tears, no names, no fading. |
| Very Good (VG) | Shows small signs of wear. Any defects (light shelfwear, small owner name) must be individually noted by the seller. |
| Good (G) | The average used, worn book — complete, readable, but clearly used. Not "good" in the everyday sense. |
| Fair | Worn and complete text, but may lack endpapers or half-title; jacket may be missing or heavily damaged. Defects must be noted. |
| Poor / Reading Copy | Severely worn. Complete enough to read; sold as a placeholder or for its text only. |
Dust jackets are graded separately
Condition for hardcovers is written as two grades: book/jacket. A listing that reads VG/G means a Very Good book in a Good jacket.
This matters enormously for value. On collectible modern firsts, the jacket can carry 80–90% of the price — so a Fine book in a Poor jacket is worth far less than the same book in a Fine jacket. Watch for these jacket notes:
- Price-clipped — the corner of the flap with the printed price has been cut off. Reduces value on collectible books.
- Chipping — small pieces missing along edges and spine ends.
- Sunned/faded spine — color loss from shelf light exposure.
- In mylar/protector — good sign; the seller cares about preservation.
Defects that must be disclosed
An honest seller notes every one of these individually, whatever the overall grade:
- Previous owner's name, bookplate, or gift inscription
- Highlighting, underlining, or marginalia
- Remainder mark (a dot or stroke on the text block edge)
- Ex-library markings (stamps, pockets, spine labels) — always stated as "ex-lib", and always worth much less
- Water damage, foxing (brown age spots), cocked or rolled spine, cracked hinges
How condition maps to price
As a rough rule for collectible books (using a Very Good copy as the baseline):
- Fine — often 1.5–2x the VG price
- Very Good — baseline market price
- Good — roughly 40–60% of VG
- Fair/Poor — 10–25% of VG; reading copies only
- Ex-library — commonly 10–30% of a comparable non-library copy
For ordinary reading copies of common books, condition affects price less — a $6 paperback is a $6 paperback — but for anything scarce, condition is the price.
Site-by-site grading reality
Not all "Very Good" grades are equal. Large-volume warehouse sellers grade quickly and generically (stock photos, no per-copy notes), while independent dealers on marketplaces like Biblio and AbeBooks usually describe the exact copy. When condition matters to you:
- Prefer listings with copy-specific descriptions over generic condition labels.
- Ask the seller for photos before buying anything expensive — reputable dealers expect this.
- Compare several copies across sellers before paying a premium. Search the book on BookBurglar to see all your options side by side.