The first complete monograph on an artist whose work investigates surveillance and government secrecy in the digital age. Trevor Paglen's art gives visual geography to hidden forces, relentlessly pursuing what he calls the 'unseeable and undocumentable' in contemporary society. Blending photography, installation, investigative journalism, and science, Paglen explores the clandestine activity of government and intelligence agencies, using high-grade equipment to document their movements and reveal their hidden inner workings. This book presents over three decades of Paglen's groundbreaking work, making visible the structures and technologies that impact our lives.