Justice League Collections
The Justice League is an organization comprised of the world's greatest superheroes. Together, they operate as a team dedicated to fighting crime and injustice, and act as Earth's first line of defense from terrestrial, extra-terrestrial and inter-dimensional threats. The founding members are Aquaman, Batman, Cyborg, The Flash, Green Lantern, Superman and Wonder Woman.
The Justice League is an all-star ensemble cast of established superhero characters from DC Comics' portfolio. The team first appeared in The Brave and the Bold #28 (March 1960). The team was conceived by writer Gardner Fox as a revival of the Justice Society of America, a similar team from DC Comics from the 1940s.
The classic cast of the Justice League is the Green Lantern, the Flash, Superman, Batman, Wonder Woman, Aquaman and the Martian Manhunter.
To read more about the Justice League go to this DC Comics post.
Or this wikipedia page titled: Justice League