13. Secret Lives of the U. S. Presidents: What Your Teachers Never Told You About the Men of the White House by Cormac O'Brien
This was in the same section as Lies Across America so I read it as well. Not as much informative as it is entertaining. The more interesting things I'd already read and the rest of it was more like, "Hey, did you know he drank a lot? or "Oh, and he cheated on his wife". Interesting, but not earth-shattering.