Hi Diane! You're right that radio interviews don't sell that many books--unless it's NPR's Fresh Air or All Things Considered, or something along that line. But you never know who'll be listening when you're on the air. As a friend of mine is fond of saying, "There's a king in every audience." I did a Clear Channel radio program that led to my writing a magazine article. I also did another very small show out of the Pacific Northwest that looks like it might lead to making Defying Gravity a book on tape. Plus, radio is so easy to do from home and costs nothing on my end. If the time isn't convenient, you can always say no.