George entered the comic industry in the 1970’s. He created a splash with his early work on Marvel’s Man-Wolf and Deathlok the Demolisher. He showed a flair for handling team books with his outstanding pencils on Fantastic Four, The Inhumans and The Avengers. George crossed over to DC in the early eighties where he took on the penciling chores on the Justice League of America. Soon after he and Mary Wolfman collaborated on what has become George’s signature series, The New Teen Titans. His work on the Titans is being released in an archive collection from DC.

His next collaboration with Wolfman was to rebuild the whole DC Universe with Crisis on Infinite Earths. With this limited series, George drew every character in the DC Universe, a feat which he repeated in the History of the DC Universe. George established his writing credentials with a critically acclaimed relaunch of Wonder Woman.

George’s other works include: The Incredible Hulk: Future Imperfect and Sachs and Violens (with Peter David), inking Gil Kane’s adaptation of Jurassic Park, inking for Dan Jurgens on his version of the Teen Titans, his wildly popular penciling run on the Avengers, his stunning creator owned, Crimson Plague and he and Kurt Busiek's Avengers/JLA Crossover was one of the biggest success of 2003 and he went on to provide covers for Infinite Crisis, the sequel to he and Marv Wolfman's incredible Crisis on Infinite Earths and he teamed with Mark Waid on their highly lauded run on Brave and the Bold. Recently George and Marv Wolfman’s much anticipated Teen Titan’s Games graphic novel was released revisiting the Heyday of the Teen Titans.

Currently George is the penciller on the hit New DCU series, Superman and World’s Finest.