George Pérez is arguably one of the greatest comic book artists to ever hold a pencil. He began his career working on a serialized action-adventure strip called Sons of the Tiger in Marvel’s Deadly Hands of Kung-Fu. From there, Pérez moved on to work on Marvel premiere superhero team, The Avengers (beginning with issue 141) and soon took over artistic duties on Marvel’s First Family, The Fantastic Four.
After tackling two of Marvel's flagship books, Pérez jumped ship and moved over to work on Justice League of America at DC Comics. Soon after, he teamed up with writer Marv Wolfman to streamline the DC Universe in the epic maxi-series, Crisis on Infinite Earths (1985).
Pérez, at one time or another during his illustrious career has drawn every major character from both the Marvel and DC Universe, many of whom were featured in JLA/Avengers (2003), a crossover that was 20 years in the making.