Mark Klett, Regent’s Professor of Art at Arizona State University, is author of eleven books of photography, among them Third View: A Rephotographic Survey of the American West (2004), Revealing Territory (1992), and One City/Two Visions: San Francisco Panoramas 1878 and 1990 (1990). His photographs have been shown and are in the permanent collections of the Whitney Museum of American Art, the Los Angeles County Museum of Art, the Oakland Museum of California, and the Huntington Library. Philip Fradkin is author of ten acclaimed books on the American West including The Great Earthquake and Firestorms of 1906: How San Francisco Nearly Destroyed Itself (California 2004) and The Seven States of California (California, 1997). He shared a Pulitzer Prize while at the Los Angeles Times. Rebecca Solnit’s previous books include River of Shadows: Eadweard Muybridge and the Technological Wild West (2003), winner of the 2003 National Book Critic’s Circle Award, Wanderlust: A History of Walking (2001), and Savage Dreams: A Journey into the Landscape Wars of the American West (California, 1999).