At least not for the little people that buy her books at the book stores.
She had a signing for VIP politicians the other day and they had to BUY her book, but she would put a personal note in it, such as "To Vince Foster: Aren't you just dying to see me again? Love, Hilliary"
(That was just an example)
Here are the rules from Corte Medera, they may vary at other locations: