"GPS Declassified is a carefully researched, well written, fast-paced, and thoroughly enjoyable book."—William F. Mellberg, Space Review
"As an introduction to GPS, its history, uses, issues and concerns GPS Declassified can’t be beat."—Robert Schaefer, New York Journal of Books
"[GPS Declassified] is a good primer and a stimulus to the more challenging aspects of what is now one of the fastest growing sectors in space applications."—Spaceflight
"This book expertly weaves the story of GPS development and its ever-expanding use. . . . Beyond the science of GPS, the authors also provide insight into how societies evolved, grow, and expand."—M. W. Carr, Choice
"This book is an essential history of how this technology came to be, how it works, and where it may be going in the future."—John Walker, Fourmilog
“A fine and entertaining story of the origins of the Global Positioning System, a consequential space-age technology that has affected the lives of hundreds of millions in war and peace. Non-specialist readers will easily understand principles of this sophisticated system and appreciate difficulties of GPS development by visionary individuals.”—Mike Gruntman, professor of astronautics at the University of Southern California at Los Angeles and author of Blazing the Trail: The Early History of Spacecraft and Rocketry
