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

gilt : The decorative application of gold or gold coloring to a portion of a book. The edges of the text block, or an inlay in the front cover of the boards, for example.

8vo : Short for Octavo, A book whose page size is approximately 8-10 inches tall. The size is based on a sheet of paper 25 inches by 38 inches, the size of paper traditionally used by book printers, which has been folded and cut into 16 pages.. Unfortunately often misunderstood to mean 8 volumes.

unopened : A state in which all or some of the pages of a book have not been separated from the adjacent pages, caused by a traditional method for printing and binding books in which a large sheet of paper was printed with several pages, folded, and bound into the book. . Sometimes inappropriately called uncut