Abebooks Glossary: Lists explanations of abbreviations and terms related to books.
Alibris: Glossary of Book Terms: The first half of the glossary contains terms A-Z and is followed by two book anatomy illustrations, descriptions of the various book sizes, a guide to condition ratings, and the most common abbreviations used in the world of books.
Book Collectors' Glossary: Cross-referenced glossary of book collecting terms.
Bookbinding and the Conservation of books: A dictionary of descriptive terminology.
Independent Online Booksellers Association - Glossary of Book Terms: Book terminology.
Independent Online Booksellers Association - Book Condition Description Terminology: Description definitions.