Book excerpt: The World's Finest Team-Up! The most iconic superheroes in the galaxy unite for an unbelievable adventure when Superman's greatest foe, Lex Luthor, becomes president of the United States and starts an all-out super-powered hunt for the Man of Tomorrow. Nearby in Gotham, Batman finds that Superman is not the last Kryptonian as he discovers another living survivor...Kal-El's cousin, Supergirl! However, behind this immense discovery may be the gravest threat of all: Darkseid! Together, Superman and Batman square off against the deadliest villains the world has ever known, in an unforgettable series of team-up adventures! Superman/Batman Omnibus Vol. 1 collects these and other classic tales featuring the Man of Steel and the Dark Knight. Written and drawn by a host of comics superstars including JEPH LOEB (Batman: The Long Halloween, Superman for All Seasons), ED McGUINNESS (Superman), MARK VERHEIDEN (The Phantom), and ETHAN VAN SCIVER (Green Lantern), this volume collects stories from Superman/ Batman #1-43, Superman/Batman Annual #1-2, and Superman/Batman: Secret Files and Origins 2003 #1.