I love World of Carbon (and it's companion volume, World of Nitrogen)! I've been trying to get the rights to republish both with modern annotations, but I'm app

I love World of Carbon (and it's companion volume, World of Nitrogen)! I've been trying to get the rights to republish both with modern annotations, but I'm apparently not a big enough publisher for William Morris Endeavor (literary management for Asimov's estate) to respond to. It's sad, since both books are out of print.