This is the cover of a book I bought in Paris with photos by many of the great photographers of Paris: Robert Doisneau, Henri Cartier-Bresson etc. - this particular photo was taken by Willy Ronis (another photographer whose work I admire greatly). Those of you wishing to purchase a copy the publisher is Hazan and the ISBN 2-85025-799-0 and I believe it is available at Amazon.fr.