"Polls are everywhere these days, and they're trying to tell us more than just who's up and who's down. As Elections and Surveys Director for CBS News, it's Anthony Salvanto's job to understand you--what you think and how you vote. He's the person behind so many of the poll numbers you see today. In [this book], Salvanto takes you on an engaging, fast-paced tour inside the world of polling and shows how to look at the numbers the way the pros do....