Not that I ever doubted it. I don't need to doubt it; as a skeptic I have evidence of it!
Bad Reader Cello Man went to the Very Large Array, a radio observatory in New Mexico, and found a copy of my (first)* book at the gift shop there (I wonder if they sell copies of "Contact" there too?). As I said, he's smart, so he bought it, and provided proof:
He wrote up his exploits on Randi's forum, so head on over there and check it out!
* Man, I have to remember to qualify the word "book"! I'm down to writing the last chapter of my second book now. W00t!