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

first thus : Indicates that this is not the first appearance of a book in print, but that this is the first appearance in a substantially different format than the true first edition. For example, a first illustrated edition of a book, or even a first paperback release of a book originally published in hard cover.

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.

VG- : A term used to denote a condition a slight grade lesser than VG. Very Good is defined by AB Bookman's Weekly as "a used book that does show some small signs of wear - but no tears - on either binding or paper. Any defects must be noted."