With the swift rise of digital technology, an unstoppable and unseen force is transforming human existence on both small and large scales: Big Data. This term, scarcely mentioned a few years back, now dictates the daily lives of many from dawn until the last light is switched off at night. The vast collection and real-time analysis of data are enabling us to tackle some of humanity’s greatest challenges while simultaneously crafting a new global nervous system. However, as Edward Snowden’s revelations about the Prism program have highlighted, the ease of accessing this data comes with significant risks. “The Human Face of Big Data” explores both the potential and the dangers of this remarkable knowledge revolution.