A much-needed corrective on what privacy is, why it matters, and how we can protect in an age when so many believe that the concept is dead. Everywhere we look, companies and governments are spying on us--seeking information about us and everyone we know. Ad networks monitor our web-surfing to send us "more relevant" ads. The NSA screens our communications for signs of radicalism. Schools track students' emails to stop school shootings. Cameras guard every street corner and traffic light, and drones fly in our skies. Databases of human information are assembled for purposes of "training" artificial intelligence programs designed to predict everything from traffic patterns to the location of undocumented migrants. We're even tracking ourselves, using personal electronics like Apple watches, Fitbits, and other gadgets that have made the "quantified self" a realistic possibility. As Facebook's Mark Zuckerberg once put it, "the Age of Privacy is over." But Zuckerberg and others who say "privacy is dead" are wrong. In Why Privacy Matters, Neil Richards explains that privacy isn't dead, but rather up for grabs. Richards shows how the fight for privacy is a fight for power that will determine what our future will look like, and whether it will remain fair and free. If we want to build a digital society that is consistent with our hard-won social values--fairness, freedom, and sustainability--then we must make a meaningful commitment to privacy. Privacy matters because good privacy rules can promote the essential human values of identity, power, freedom, and trust. If we want to preserve our commitments to these precious yet fragile values, we will need privacy rules. After detailing why privacy remains so important, Richards considers strategies that can help us protect it privacy from the forces that are working to undermine it. Pithy and forceful, this is essential reading for anyone interested in a topic that sits at the center of so many current problems.