Gass died yesterday at his home in St Louis, publisher Alfred A. Knopf announced. No cause of death was immediately available.
A leading experimental writer of the 1960s and '70s, Gass wrote influential works of fiction such as "Omensetter's Luck" and won numerous literary prizes for his works of criticism.
He was a longtime St Louis resident who taught at the University of Washington and even earned a star on the city's Walk of Fame.
Disclaimer: No Business Standard Journalist was involved in creation of this content
