As fashion photographers pushed artistic boundaries in the 20th century, they created seminal images that came to define entire decades. Including works by the likes of Norman Parkinson, Lillian Bassman and Albert Watson, Sotheby's Fashion Photographs Online: A Capsule Collection sale features the unforgettable faces of Twiggy, Audrey Hepburn, Cindy Crawford, Jean Shrimpton and Kate Moss.
Click through for the best angles of these fashion icons.