Art critic for The Times Rachel Campbell-Johnston profiles the work of Laure Prouvost, winner of the Turner Prize 2013. Theatre critic Mark Shenton and Dr Caroline Warman review a new staging of Leonard Bernstein's Candide, choreographed by former Royal Ballet star Adam Cooper. Writers Hermione Lee and Simon Garfield discuss the insight personal letters give into writers' lives and creative processes. And Night Waves reflects on how experimental band Can melded the ideas of Karlheinz Stockhausen and free jazz to revolutionise 60s' German pop.