Mark Klett is a photographer and educator based in Arizona. The photographs from his series Time Studies explore the concept of time and space. Theories on this subject have been a topic of debate for physicists and philosophers throughout history, and an
Mark Klett and Bryon Wolfe have been collaborating on a series, Charting the Canyon, since 2007. The photographers have been re-photographing a variety of iconic views of the Grand Canyon and using digital technology to present old images in new contexts. The old images, which include paintings and drawings as well as photographs, are superimposed on new photographs—and vice versa—with provocative results.