From the introduction of the book:
They're heroes. They fight crime. They've been around for more than twenty years. They're the world's greatest. They're the Justice League.
And now, they're part of the DC HEROES Role-Playing Games.
AT last, you hold in your hands a reference work that describes all of the Justice Leaguers past and present, their fiendish foes, their weapons, their equipment, and more.In short, everything you need to know about the superteam to end all superteams, the legendary Justice League of America/International is right here.