I know what I'll be leafing through at work today. I'm sure I'll be posting some excerpts over the next week.
If you're interested in Roth, be sure to check out the book excerpt at The New Yorker, which includes ten letters from the book.
Paul Raymont at Philosophy, lit, etc. has more links at the end of this post, as well as several more posts on Roth over the years.
A manuscript page from Joseph Roth’s 1932 novel The Radetzky March