The Walking Dead: Top Comic Book in 2013 Gene Page/AMC The Walking Dead - Season 3, Episode 1 The Walking Dead issue #115, was the best-selling comic of 2013, according to rankings released by Diamond Comic Distributors. The issue, created by Robert Kirkman and illustrated by Charlie Adlard, marked the zombie comic's 10th anniversary. The popular television show on AMC is based on the comic book series of the same name. Despite The Walking Dead's strong showing, its publisher Image Comics was a distant third among the top comic book publishers of the year, controlling just 8% of the market, measured in dollars. DC Comics, with a 30.33% dollar market share, was the year's second biggest publisher, and Marvel topped the list with a 33.50% share. Overall, comic book sales were up more than 10% in 2013. Sales of graphic novels ticked up 6.5%.