Robert Doisneau, the wartime years: Paris show hails photographer’s ‘spirit of resistance’

French photographer Robert Doisneau is celebrated for his portrayal of Parisian street scenes and pioneering photojournalism. A new exhibition looks at his lesser-known career forging documents in Nazi-occupied Paris, his photographs of wartime France, and his series on the underground printers who played such a vital role in the French Resistance.