Ground-penetrating radar (GPR) has become one of the standard tools in the archaeologist's array of methods, but users still struggle to understand what the images tell us. In this book?illustrated with over 200 full-color photographs?Lawrence Conyers shows how results of geophysical surveys can test ideas regarding people, history, and cultures, as well as be used to prospect for buried remains. Using 20 years of data from more than 600 GPR surveys in a wide array of settings, Conyers, one of the first archaeological specialists in GPR, provides the consumer of GPR studies with basic information on how the process works. He show how the plots are generated, what subsurface factors influence specific profiles, how the archaeologist can help the surveyor collect optimal data, and how to translate the results into useable archaeological information.