Well that just messes up my head. I have Roth's novel I Married a Communist out from the library because, well, Philip Roth's recent novels are amazing.
I knew the book was part of a loose trilogy which contained the Pulitzer Prize winning American Pastoral and The Human Stain (which I feel is superior to American Pastoral).
Turns out, the trilogy goes like this:
American Pastoral (1997)
I Married a Communist (1998)
The Human Stain (2000)
So naturally I read The Human Stain first, then American Pastoral and now I'll be reading I Married a Communist.
On the plus side this is only a loose trilogy without a continuing storyline or characters in common (except for the Roth stand in Nathan Zuckerman).