In a sense, the photographs of Arlington National Cemetery seen here are meant to do the same. They are emblems, or can be seen as such. They stand for something, as the ceremonies and military honors at Arlington stand for something. "When I stood there looking out at all those graves, I felt like, here I am doing what I'm doing today, exactly what I want to be doing, because of these people," says Dave Black, one of the people who photographed Arlington for Where Valor Rests: Arlington National Cemetery (Rich Clarkson Associates/National Geographic Books, $30). Also featured in the book is work by David Burnett, James Balog, Bruce Dale, David Alan Harvey, and Brian Lanker, each of whom has looked at Arlington in a different way, employing different techniques to capture a common ground. For this special issue, we asked each of the photographers to tell us how they approached the subject, and how the work affected them.