This product is a single issue comic book titled "Green Lantern & Sentinel Heart of Darkness #1". It features the character Green Lantern from the DC universe and was published by DC Comics in 1998. The comic is intended for a general audience and falls under the genres of action and adventure. It is part of the "Green Lanterns" series and is set in the modern age of US comics. The comic is in a color format and is not signed.