Henri Peretz is a sociologist and writer and is Associate Professor of Sociology at the University of Paris VIII. He is the author of Les methodes en sociologie: L'observation (1998), contributing writer to The Table of Power by photographer Jacqueline Hassink (1996) and to the exhibition and book Magnum Landscape, published by Phaidon.
Sophie Spencer-Wood is a picture editor and researcher. She has worked with, among others, Colin Jacobson on Reportage magazine, among others, and as assistant to Bruce Bernard on Phaidon's award-winning book, Century. Her other books include Gandhi and Freedom: An African American Struggle, also published by Phaidon.
Margaret Walters is a critic, writer and broadcaster. She has written extensively on the visual arts and culture, and has broadcast frequently on the BBC. Her book The Male Nude: A New Perspective was published to much critical acclaim. She currently reviews novels for The Sunday Times.