In 2000 he went to work for Marvel Comics as a senior editor. While there, he edited Spider-Man and X-Men-related books before ascending to vice president, executive editor in 2010, and editor in chief in January 2011, replacing Joe Quesada. He has also worked as a writer and inker.
In 2000, he began working for Marvel Comics as a senior editor. During his tenure there, he edited Spider-Man and X-Men publications before advancing to vice president, executive editor in 2010, and editor in chief in January 2011, succeeding Joe Quesada. He has also been involved in writing and inking.