William A. Ewing has been an author, lecturer, curator of photography and museum director for more than forty years. His many publications on photography include The Body, Landmark and Edward Burtynsky: Essential Elements, all published by Thames & Hudson. Nathalie Herschdorfer is an author and curator specialised in photography. She is the director of the Museum of Fine Arts Le Locle, Switzerland, and a curator with FEP (Foundation for the Exhibition of Photography). She has written a number of books amongst which are Afterwards, The Thames & Hudson Dictionary of Photography, Coming into Fashion and reGeneration, all published by Thames & Hudson.