"Superman and Batman first teamed up in these stories from comics' Golden Age, reprinted here for the first time in one massive hardcover. In these tales, which feature frequent guest stars Robin, Lois Lane, Commissioner Gordon and Perry White, the two heroes battle crime in the past, present and future, including each other's greatest foes: Lex Luthor and The Joker! Collects stories from New York World's Fair Comics #1-2 and World's Finest Comics...

With that in mind, Grant Morrison ushered in a new era for the JLA, restoring the membership to the core members and providing them with a headquarters befitting the Earth's protectors. From their Watchtower on the Moon, they can monitor activity at all times, but they're surprised when their fist threat comes not form a continent but from another planet. -back cover.

Banished from this plane of existence by dark mystical forces, Superman, Batman, and Wonder Woman -- the Trinity -- have become the gods of a hidden world. But the world they left behind is on the verge of collapse. An army of evil led by the Trinity's dark mirror images has overrun the globe, harnessing the energy of creation itself to seize control of the earth. Only the power now possessed by the Trinity can restore reality's rightful balance....

"The Dynamic Duo Batman and Robin team up with Scooby-Doo and his mystery busting friends the Mystery Inc.! Holy overactive imagination! When Scarecrow attacks using his fear gas, only humans are affected, leaving Batman, Robin and the Mystery Inc. gang trapped facing 'monsters' from their own imaginations. Now, it's up to canine crusaders Scooby-Doo and Ace the Bat-Hound to save the day!"--