Daniel Gillespie Clowes (born April 14, 1961) is an American cartoonist and screenwriter. Much of Clowes's work first appeared in his comic book Eightball, which anthologized self-contained serialized narratives. These stories have been collected and published as graphic novels, such as Ghost World (1997) and David Boring (2000). His comics in the 21st century have appeared as graphic novels without being serialized. With filmmaker Terry Zwigoff, Clowes adapted Ghost World into a 2001 film, and adapted another Eightball story into film in 2006, Art School Confidential.