DJ : Short for dust jacket, a protective and often decorative wrapper, usually made of paper which wraps around the binding of a book.

book club edition : A generic term denoting a book which was produced or distributed by one of any number of book club organizations. Usually the overall quality of the book's materials is lower than the same book as printed by a traditional publishing house.

chipped : A defect in which small pieces missing from the edges.

Biblio : The Greek root for a variety of words referring to the book, such as bibliography, bibliomania, etc. Also, one of the world's largest internet book search services.