What is the font used for the novel Prep, by Curtis Sittenfeld?

I know, this is such a weird question... I'm talking about the paperback version, by the way, and I just liked the font... sadly, I don't own a copy (I'm reading it at school, I checked it out from the library and we read our books in cl some days and my teacher's a crazy freak who won't let us take the books home to read...)