Ai Weiwei, who has risen from eleventh place last year, was detained by Chinese authorities for 81 days earlier this year, supposedly for "economic crimes," and published an article in August that described Beijing as a prison and a city of violence. Art Review applaud his work for moving beyond the gallery or museum, dealing with "what’s happening now, around us, in the real world."
Hans Ulrich Obrist & Julia Peyton-Jones, curators of the Serpentine Gallery in London, are at number two on the list.
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