The vocabulary of the antiquarian trade, plainly explained.
Every field has its language, and rare books more than most. The terms below recur in catalogue descriptions, appraisals, and dealers' conversation; understanding them is the first step from casual reader to collector. For the classic treatment, John Carter's ABC for Book Collectors remains the standard reference, and the ILAB glossary is freely available online.
Editions and Printings
- Edition
- All copies of a book printed from a single setting of type. A first edition is the first appearance of a text in book form — the form most collectors prize.
- Printing (Impression)
- A single press run within an edition. A “first edition, second printing” uses the same type as the first but was run later; collectors generally want the first printing.
- Issue & State
- Variations within a single printing. A change made during production (a corrected misprint, a cancelled leaf) creates a new state; a change tied to publication or sale creates a new issue. Points of issue can dramatically affect value.
- Points
- The specific, identifiable features that distinguish one issue or state from another — a broken letter, a mis-numbered page, a particular advertisement. Points are the bibliographer's fingerprints.
Format and Structure
- Folio, Quarto, Octavo
- Formats defined by how many times the printed sheet is folded: once (folio), twice (quarto, 4to), three times (octavo, 8vo). They describe a book's size and construction, not merely its dimensions.
- Colophon
- A note, usually at the end of a book, giving details of its printing — printer, place, date, and often the size of a limited edition.
- Incunabula
- Books printed before 1501, in the “cradle” of European printing. The singular is incunabulum.
Condition and Binding
- Foxing
- The brown or rust-colored spotting that appears on aging paper, caused by dampness and impurities. Light foxing is common; heavy foxing depresses value.
- Dust Jacket (DJ)
- The printed paper wrapper protecting a book's binding. For twentieth-century first editions the jacket is often worth more than the book it covers; its presence and condition are decisive.
- Fine, Very Good, Good
- The graded language of condition. Fine approaches as-new; very good shows minor wear; good is a complete but well-used copy. Precision here is a matter of honesty.
Provenance and Value
- Provenance
- The record of a book's previous ownership — bookplates, signatures, sale records. Distinguished provenance can transform an ordinary copy.
- Association Copy
- A copy with a meaningful connection to the author or to someone linked to the book — an inscribed presentation copy, or a volume from a famous library.
- Ephemera
- Printed material never meant to survive — broadsides, programs, letters, catalogues. Often the rarest survivals of all.
Ready to see the vocabulary in action? Read how a fine copy is described in our Catalogues. For serious study of the physical book, Rare Book School offers courses to collectors and librarians alike.