The Burnt World of Athas

The official Dark Sun website

Brom has a kickstarter

For a massive book of his art: "This Brom hardcover art book will be the largest, most comprehensive retrospective ever published on this renowned dark fantasy artist. "

Take a look at the kickstarter. There are a couple of levels for signed prints and sketches, if you're interested in that. It's already funded, with well over a month to go. Book delivery set for June 2013, about 10 months from now.