CREATIVITY: Workers assemble the installation “Law of the Journey (Prototype B)” by Chinese artist Ai Weiwei, at the Ibirapuera Park, in Sao Paulo, Brazil. Chinese visual artist Ai Weiwei will inaugurate in Sao Paulo on October 20 his exhibition “Ai Weiwei Root”, the biggest retrospective of his relevant and controversial works, a cry against repression and human rights violations. — AFP