Cultural Capital 27 April 2012 Friday Arts Diary Sign UpGet the New Statesman's Morning Call email. Sign-up Photography Somerset House, WC2, Sony World Photography Awards Exhibition, until 20 May The 5th year of the annual Sony World Photography Awards which showcases the best international contemporary photography. Across categories including current affairs, sport, portraiture, landscape and fashion, the exhibit also includes an opening weekend festival for photographers. Books Canada Water Culture Space, SE1, Andrew Motion, 2 May The author and poet, Sir Andrew Motion, gives a reading from his new novel Silver: The Return to Treasure Island. He also discusses this book and his older works. Art Pippy Houldsworth Gallery, W1, Ai Weiwei, until 26 May A miniature "living" installation of a cactus by renowned Chinese conceptual artist, film-maker and activist, Ai Weiwei, in The Box, the gallery’s micro project space. Music Barbican Centre, EC2, Total Immersion: Arvo Part, 28 April A day of celebration for the Estonian composer, which includes an introduction to his work and subsequent performances from the BBC Singers and the Guildhall Ensemble. Theatre Royal Court Theatre, SW1, Belong, until 26 May Bola Agbaje returns to the Royal Court with her new play about a British MP who attempts to escape the political heat of London by fleeing to Nigeria. This is a satirical look at politics and the notions of "home". › Osborne is losing political control of the economic debate Photo: Getty Images Subscribe For the latest TV, art, films and book reviews subscribe for just £1 per month!