wraps : The paper covering on the outside of a paperback.

jacket : Sometimes used as another term for dust jacket, a protective and often decorative wrapper, usually made of paper which wraps around the binding of a book

trade paperback : Often used to indicate any paperback book that is somewhat larger than a mass-market paperback.

title page : A page where the title of the book, the author's name and publication information usually appear.

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.