GPS For Dummies gives new meaning to finding yourself. In fact, with a GPS (global positioning system) receiver, you can determine precisely where you are anywhere on this planet. If you're are planning on buying a GPS receiver or if you have one and want to get your money's worth, this guide tells you what you need to know, including:Basic GPS principles and concepts such as waypoints, routes, tracks, and coordinate systemsRecommended features for GPS receivers to be used in various types of activities, including hiking, mountain biking, cross country skiing, geocaching, hunting, ATVing, mapping, and moreHow to do digital mapping on your computer, including software packages you can use to work with aerial photos, topographic maps, and road mapsThe main providers of digital map data for the U.S. and their Web sitesThe scoop on geocachinga high-tech treasure huntWritten by Joel McNamara, avid outdoorsman, adventure racer, search and rescue team member, and author of Secrets of Computer Espionage, GPS for Dummies is ideal for both ordinary travelers and exotic explorers. It covers a world of GPS info such as:Choosing features for a GPS receiver, including the screen, an alarm, built-in maps, an electric compass, an altimeter, antennas, interface modes, and moreSystems for traveling on the main roads and systems for exploring off the beaten pathUsing GPS with a PDA (personal digital assistant)Computer requirements for different mapping choicesTopographic map software from Maptech, DeLorme, and National Geographic that's for off-road useUsing Web-hosted mapping services, including street maps, topographic maps, aerial photos, and U.S. government-produced mapsIncorporating GPS receivers into outdoor workouts, with tips for specific sports including cycling, golf, rowing, and moreA companion Web site has links to all kinds of free maps and resources. So explore on your computer and then explore for real! With GPS for Dummies, you'll find yourself having adventures!