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South African artist William Kentridge discusses making animated films, drawings and directing the opera Lulu. William Boyd's latest novel Sweet Caress traces the life and work of a photographer. Philip Dodd talks to him about viewing 20th century history and news events through the lens of a fictional photo journalist. New Generation Thinker Zoe Norridge, documentary photographer Anna Fox and Eamonn McCabe – portrait photographer and former picture editor of the Guardian newspaper - discuss the impact of digital photography on the way we see the world.