The document discusses the history and development of photography from the past to present day. It notes that in the past, only a few people could afford cameras but that cameras have become much more affordable and easier to use with technological advancements. It provides quotes from famous photographers about the art of photography and what it means to them. It also gives brief biographies of some famous photographers such as Manuel Alvarez Bravo, James Nachtwey, and Lewis Wickes Hine.