Daniel Clowes has won the PEN Center USA Literary Award for graphic literature, honoring an outstanding body of work that includes Ghost World, Eightball, David Boring, Wilson and Mr. Wonderful.

Presented by the California-based PEN Center USA, a nonprofit association dedicated to protecting the rights of writers and stimulating interest in the written word, the awards have since 1982 recognized literary excellence in categories ranging from fiction and children's literature to journalism and graphic literature. Winners receive a $1,000 cash prize.

This is only the second year for the graphic literature category. Matt Fraction received the first award in 2010.