Vonnegut:

Whose room is too awesome, even if he doesn't have a computer.
Roberto Bolaño has one of the few keyboards that isn't a typewriter on the site.

And Stephen King, naturally.

George Plimpton's got some multimedia going on in, 1990s style.

But the computers are fairly few and far between. It's mostly typewriter porn, and more than just a little of the old pen and paper…
Larry McMurtry, one of many featured whose home looks like a library.

Peter Carey, with ladder.

And Thornton Wilder, breaking the trend.

But the prize for best office goes to Dalton Trumbo.

Can't beat working from the bathtub.
Found via Craig Mod on Twitter.