Audio Canvas -- Mark Klett
Mark Klett is an American Photographer and Professor of Art at Arizona State University. His work studies Western landscapes, most notably the Grand Canyon and desert environments. Klett has a diverse background in geology and photography. After receiving a bachelor's degree in Geology, he decided to pursue photography professionally and received an MFA in Photography. In the meantime, he spent summers using his geology degree as a field assistant for the U.S. Geological Survey. He uses a technique called "re-photography" or "repeat photography", by stitching photographs of particular locations into present-day photographs of the same location (see images).
Klett taught a class at Anderson Ranch, titled Photographing the Passage of Time. Klett's work can be seen on his website.
More information on Anderson Ranch and workshops, can be found here.