A New York Times Bestseller

An audacious, irreverent investigation of human behavior-and a first look at a revolution in the making

Our personal data has been used to spy on us, hire and fire us, and sell us stuff we don't need. In Dataclysm, Christian Rudder uses it to show us who we truly are.

For centuries, we've relied on polling or small-scale lab experiments to study human behavior. Today, a new approach is possible. As we live more of our lives online,...