Most people are familiar with GPS technology to some degree, but how many people know how it actually works? Readers are able to confidently say they do after exploring this comprehensive and clear guide to GPS and its many uses in the military. As readers gain a deeper understanding through the fact-focused text and engaging sidebars, they are also encouraged to think critically and apply their new knowledge with questions at the end of each chapter. Featuring detailed photographs and graphic organizers, this exciting look at STEM topics is sure to fascinate readers.