Photography began almost 150 years ago with the nearly simultaneous invention of two types of photographic processes, the daguerreotype and the Talbotype or calotype. On January 7, 1839, Louis Daguerre announced his discovery of a way to reproduce images on coated copper plate. Shortly thereafter, on January 31, William Talbot explained how shadows of objects could be chemically recorded on salted paper sensitized with silver nitrate. With the advent of photography, the people, architecture, and natural beauty of Chester County, Pennsylvania, made worthy subject matter for many professional and amateur photographers. Photographers in Chester County, many of whom were also skilled artisans and craftsmen, were fortunate in that they lived near Philadelphia, a center of photographic activity. The first photographers in the county were itinerant tradesmen who traveled from place to place, taking photographs, portraits mainly, for a fee. Later, as photography developed and became more widely known, many photographers opened their own studios. Reflected Light: A Century of Photography in Chester County offers an overview of the development of the photographic medium and traces the progress of photography by examining the work of ten Chester County photographers. In the text by Pamela Powell and in striking photographs of the county and its people, the story of photography in its earliest years is deftly told.