This is a Green Lantern comic book titled "Brightest Day" from DC Comics published in August 2011. The story features a variety of characters from the Green Lantern Corps, including Guy Gardner, Hal Jordan, and Sodam Yat, as well as other characters like Superman and Atrocitus from the Red Lantern Corps. The comic book is in hardcover format and is written by Geoff Johns with art by Doug Mahnke and others.

It's a great addition to any collection of superhero comics, and it's perfect for general audiences who enjoy science fiction and superheroes. This cover variant features art by Randy Mayor and Doug Mahnke, and the comic book is part of the Modern Age (1992-Now) era of DC Comics. Whether you're a fan of Green Lantern, the Justice League, or just love comic books, this is a must-have addition to your collection.