This is a rare combination of both the 1st edition hardback and 1st edition paperback of Stephen King's popular novel, Insomnia. The hardcover book measures 9.5in. in length, 6.4in. in width, and 2.3in. in height, with 787 pages in hardback and 663 in paperback. The books are in very good condition, and the hardback comes with a dust jacket.

The books are published by Penguin Publishing Group and are written in English. The books are intended for young adults and adults, and fall under the genre of horror fiction. The books feature the original language and have no ex libris or signature. These books were published in 1994 & 1995 respectively in the United States.