The Center for Creative Photography, located in Arizona, is home to one of the largest and most eclectic photographic collections in the world. This publication offers a virtual guided tour of the center's extensive holdings, including a visit through the archives of some of the 20th century's most important North American Ansel Adams, Richard Avedon, Harry Callahan, Louise Dahl-Wolfe, Lee Friedlander, Tina Modotti, Beaumont & Nancy Newhall, Aaron Siskind, W. Eugene Smith, Paul Strand, Edward Weston, and Garry Winogrand. With scholarly commentary on artists' books, 19th-century travel photography, early 20th-century travel albums, and the CCP's collections of French, German, Japanese, Mexican, and Spanish photography, Original Sources is the most comprehensive introduction to one of photography's most treasured repositories.