On topic.... I can't really comment about this. I have around 100 of books that are from Foreign writers (Not including Belgians and French Writers) and only 6 books are from American writers and are all science fiction stories like from Eric Nyton (Halo the fall of reach). I am not a literature specialist so I don't really know much about it;.
But I found this and I think it is quite interesting:
From roughly the early 1970s until present day, the most well known literary category, though often contested as a proper title, has been Postmodernism. Notable, intellectually well-received writers of the period have included Thomas Pynchon, Tim O'Brien, Robert Stone, Don DeLillo, Paul Auster, Toni Morrison, Philip Roth, Cormac McCarthy, Raymond Carver, John Cheever, Joyce Carol Oates and Annie Dillard. Authors typically labeled Postmodern have dealt with and are today dealing directly with many of the ways that popular culture and mass media have influenced the average American's perception and experience of the world, which is quite often criticized along with the American government, and, in many cases, with America's history, but especially with the average American's perception of his or her own history.
