I've sold five autographed copies of "Letters from Gardner" since returning from the Sasquan convention. Here is an excerpt from a letter that accompanied the most recent purchase:
"Thank you for your writing. I deeply enjoy grabbing one of your books for an entertaining read when I need to relax and I don't the time or patience to dive into an 800 page epic fantasy or hard sci-fi that I often read. I hope you continue to have success with your writing and we have many more of your stories to look forward to."