Camilo José Vergara (born 1944 in Santiago, Chile) is a Chilean-born, New York-based writer, photographer and documentarian. Vergara has been compared to Jacob Riis for his photographic documentation of American slums and decaying urban environments. Beginning in the 1980s, Vergara applied the technique of rephotography to a series of American cities, photographing the same buildings and neighborhoods from the exact vantage point at regular intervals over many years to capture changes over time. Trained as a sociologist with a specialty in urbanism, Vergara turned to his systematic documentation at a moment of urban decay, and he chose locales where that stress seemed highest: the housing projects of Chicago; the South Bronx of New York City; Camden, New Jersey; and Detroit, Michigan, amon