He has drawn and written many comic books, mostly in Croatian, but in 1993 he broke into the American comics industry when he and fellow Croatian artist Edvin Biuković submitted their work to Dark Horse Comics. He has also done Donald Duck and Mickey Mouse for Disney comics. He was nominated for the Eisner Award twice (Grendel Tales: Devils and Deaths and Prayer to Sun).
Under the pseudonym Cecile Quintal he has written essays about comics.
He was editor of nine Annual Collections of Croatian SF. He is editor-in-chief of the "Q strip" comics magazine.
He wrote Star Wars: Chewbacca, Star Wars: Jedi vs. Sith, and Star Wars: Vader's Quest for Dark Horse Comics, as well as "Lady Luck" and Star Wars: X-Wing Rogue Squadron: The Phantom Affair (with art by fellow Croatian comic creator, and friend, Edvin Biukovic).