More than 200,000 copies sold!

This latest edition of GPS Made Easy has been revised to reflect the increased accuracy provided by WAAS, EGNOS, MSAS and NDGPS coverage, the availability of downloadable maps and the use of computers, PDAs and Pocket PCs with GPS receivers, the status of national GPS systems, and the emergence of GPS and dead-reckoning technology. GPS Made Easy tells you all you need to know about using hand-held GPS receivers for accurate navigation in the outdoors:

• how GPS works

• how Differential GSP (DGPS) and WAAS work

• common features of GPS receivers

• practical, step-by-step examples of GPS use in the wilderness

• how to use a GPS receiver with electronic and paper maps

• practical examples using the UTM and Latitude/Longitude grids

• using computer-based electronic maps with a GPS receiver

• using a vehicle GPS receiver

• a chapter on GPS-enhanced devices such as mobile phones, PDAs and more

• explanation of UPS, OSGB, MGRS and Maidenhead grids

"Buy this book before you buy your GPS. It will teach you what questions to ask and what the answers mean . . . there's no better way to learn the ins and outs of GPS." - News Tribune, Tacoma, WA

"If you travel far from the beaten path, or in regions without obvious points of reference, GPS can be a tremendous source of security. Letham's book can explain how to make the most of that global navigation system . . . it's a one-stop source of information." - Times Leader, Wilkes-Barre, PA

LAWRENCE LETHAM, a registered patent attorney, electrical engineer and outdoor enthusiast, has long been fascinated by maps and the art of navigation. ALEX LETHAM, a bioengineer and now first-year medical student, mountain bikes, hikes, kayaks and snowboards regularly. Both live in Arizona and love their GPS receivers.

INSTRUCTION / OUTDOOR SKILLS ISBN: 978-1-897522-05-9 5.5" x 8.5", 224 Pages B/W Photos, Drawings, Maps $19.95, Softcover Available May 2008