Who has the No. 1 celebrity memoir of the past 10 years? The answer might surprise you

Fall is a time for turning leaves, cooling temps and, oddly enough, quite a lot of celebrity memoirs. They are as prevalent as sweaters and pumpkin spice this time of year. In the coming months alone, we'll see memoirs from Kelly Ripa, Steve-O, Constance Wu, William Shatner, Geena Davis, Ralph Macchio, Tom Felton, Matthew Perry and Bono.