For 200 years, industry mastered iron, fire, strength and energy. Today, electronics shapes our everyday objects, integrating chips: computers, phones, keys, games, household appliances, etc. Data, software and calculation frame the conduct of humankind, and everything is translated into data. The first volume in this series analyzes the stakes of the massive data which accumulate on the Internet, keeping track of our actions and gestures, the state of the world and our knowledge.