Famous Monsters of Filmland was originally conceived as a one-shot publication by Warren and Ackerman, published in the wake of the widespread success of the Shock Theater package of old horror movies syndicated to American television in 1957. But the first issue, published in February 1958, was so successful that it required a second printing to fulfill public demand. Its future as part of American culture was immediately obvious to both men. The success prompted spinoff magazines such as Spacemen, Favorite Westerns of Filmland, Screen Thrills Illustrated, Creepy, Eerie, and Vampirella.
EHT Comics 