Ai Weiwei (b. 1957, Beijing) is among the world’s most celebrated contemporary artists and one of China’s most formidable critics. His sculptures, photographs, installations, and public artworks often repurpose traditional Chinese forms and materials to address today’s most pressing social concerns. An outspoken human rights activist, Ai was arrested by Chinese authorities on April 3, 2011 and held incommunicado for eighty-one days. In July 2015 he was granted the return of his passport to travel abroad despite ongoing government surveillance. Throughout, Ai has continued to extend his practice across multiple disciplines, using exhibitions, documentary films, and social media to communicate with a global audience.