A hardcover, hardbound or hardback book has rigid covers and is stitched in the spine. Reference (Hardbound) and Textbook (Paperback) editions. The art book is a 100-page hardbound art book featuring imagery from the "Killzone" universe. The deluxe hardbound, slipcased edition is limited to 72 copies. The standard edition is limited to 700 hardbound copies. The hardbound book is 320 pages in length and features color illustrations. One hardbound edition remains housed in the Smithsonian's permanent collection. The Modern Library originally published only hardbound books. During 1995, a hardbound edition illustrated by Ginnie Hofmann and Ikki Matsumoto was released. The "Star Drive Campaign Setting" book is hardbound with 256 pages illustrated in color. All three series, plus a sourcebook, would be combined in a hardbound omnibus in 2010. The deluxe vinyl is individually numbered and comes in a hardbound case with swing pockets. The core "Stargate SG-1" role-playing book is a hardbound and full-color 488 page volume. The chapters were collected and published as a single hardbound novel in 1990. Everyone who attended the performances received a hardbound "yearbook" of the band's history.