The book is available as both hardcover and paperback. It is available in hardcover, paperback, eBook and audiobook formats. In 1976, Grosset and Dunlap republished the novel in paperback and hardcover editions. It is available in both hardcover and trade paperback editions. Bestsellers also may be ranked separately for hardcover and paperback editions. It was concurrently released as both a hardcover and trade paperback novel. The two mini-series were later published in collected form as hardcover and paperback graphic novels. This one-shot appeared in both hardcover and trade paperback editions. Both the hardcover and the paperback include several pages of previously unreleased material. This article applies to both paperback and hardcover collections. Tor Science Fiction has published the following works in both hardcover and paperback format. The "inside front cover" page is usually left blank in both hardcover and paperback books. This series reprints the "best" stories of all time in hardcover or paperback. It is produced in both hardcover and softcover versions. In 2010 Marvel began collecting the story in trade paperback and hardcover forms ().