About the Book: This compelling work of narrative non-fiction reveals the hidden history, power, and vulnerabilities of the Global Positioning System (GPS). Katherine Dunn explores how a military invention transformed into an essential technology shaping navigation, trade, finance, agriculture, communication, and everyday life. From the space race to smartphones, GPS has changed how humanity understands location and time while creating new dependencies and risks. Blending technology, geopolitics, and economics, this fascinating exploration uncovers the invisible network that connects the modern world and examines what happens when the systems we rely on become vulnerable.