University of London art historian Steven Adams uses over 300 illustrations to document a group of the impressionist circle, their art in the context of the social and cultural transformation France underwent in the second half of the 19th century. Baron Georges Haussmann's radical rebuilding of Paris made the ``city of light and space'' an accessible social ambience for the impressionist painters. They were not isolated figures because of strong links with writers, were steeped in the music of their time and were deeply affected by the Franco-Prussian War, the Prussian occupation and the swift collapse of Napoleon III. What was revolutionary about their art, contends Adams, was not so much its technique or content as the unshackled artist's changed relationship to society. Page 146 begins a gazetteer that uses color photographs and maps to document the impressionists' studios still in existence and the sites they painted.