Misinformation, disinformation, and fake news abound, and in such a partisan environment, it's increasingly difficult to know what's true. Are the numbers or results too good or too dramatic to be true? Is the claim comparing like with like? Is it confirming your personal bias? Very likely. Drawing on a deep well of expertise in statistics and computational biology, Carl Bergstrom and Jevin West unpack some splendid examples of nonsense and foolishness, and give us a set of powerful tools to cut through the most intimidating data.