Most of the math is statistics, which makes sense, as statistics is the most familiar way in which math crops up day-to-day. You read about some scientific study (Facebook has just provided a newsworthy example), and it's got a sample size and a significance number. So what do we think about that? One should have a clue. There are deep arguments to be had, and the book runs back to the founding philosophers of statistics to sketch them; then it runs forward to the details of a lottery scam (or "scam") which ran in Massachusetts just a few years ago. And then it runs around through politics (elections!) and political science (making decisions based on statistical studies!) It's all pleasantly digressive, but math is the binding thread.