Some two million people visit the battlefield at Gettysburg each year. It is one of the most popular historical destinations in the United States. Most visitors tour the field by following the National Park Service's suggested auto tour. The standard tour, however, skips crucial monuments, markers, battle actions, town sites, hospital locations, and other hidden historical gems that should be experienced by everyone. These serious oversights are fully rectified in The Complete Gettysburg Guide, penned by noted Gettysburg historian J. David Petruzzi and illustrated with the full-color photography and maps of Civil War cartographer Steven Stanley.