Ai Weiwei, Arch, 2017. Courtesy Ai Weiwei Studio/ Frahm & Frahm. Photo Jason Wyche, courtesy Public Art Fund, NY

Ai Weiwei, Circle Fence, 2017, New York. Courtesy the artist. Photo Timothy Schenck, courtesy Public Art Fund, NY

Ai Weiwei, Circle Fence, 2017, New York. Detail. Courtesy the artist. Photo Timothy Schenck, courtesy Public Art Fund, NY

Ai Weiwei, Brooklyn Shelter, 2017, New York. Courtesy l’artista. Foto Jason Wyche

Ai Weiwei, Reframe, 2016. Palazzo Strozzi, Florence

Ai Weiwei, F Lotus, 2016. © Ai Weiwei Studio, Photo © Belvedere, Vienna

Ai Weiwei, F Lotus, 2016. © Ai Weiwei Studio, Photo © Belvedere, Vienna

Ai Weiwei, The Animal That Looks Like a Llama but Is Really an Alpaca, 2015. Courtesy Massimo De Carlo, Milan/London/Hong Kong

Herzog & De Meuron, Ai Weiwei, Serpentine Pavilion, London, 2012. Exterior view. In Domus n. 960, July 2012

Herzog & De Meuron, Ai Weiwei, Serpentine Pavilion, London, 2012. Detail. In Domus n. 960, July 2012

Herzog & De Meuron, Ai Weiwei, Serpentine Pavilion, London, 2012. Exterior view. In Domus n. 960, July 2012

Ai Weiwei, Sunflower Seeds, 2010. Tate Modern, London. ©Tate

Ai Weiwei walking on Sunflower Seeds in Ai Weiwei. Never Sorry (2012)

Ai Weiwei with some of the Sunflower Seeds for Tate Modern, London, 2010

Ai Weiwei photographs the destruction of his Shanghai studio by the Chinese authorities, 2011.

Ai Weiwei. Roots and Branches, 2016. Installation detail at Lisson Gallery, New York, 2016

Ai Weiwei. Roots and Branches, 2016. Installation view at Lisson Gallery, New York, 2016

“Ai Weiwei: New York Photographs, 1983-1993, exhibition opening at Three Shadows. Photography Art Center, Beijing, January 2, 2009.” in Ai Weiwei's Blog. Writings, Interviews, and Digital Rants, 2006–2009, MIT Press, Cambridge, Massachussets, 2011.

“In the artist's Beijing restaurant, Go Where? December 31, 2006.” in Ai Weiwei's Blog. Writings, Interviews, and Digital Rants, 2006–2009, MIT Press, Cambridge, Massachussets, 2011.

Jinhua Architecture Park, (project by Ai Weiwei), Jinhua, China, 2002. The Reading Space Pavilion by Herzog & De Meuron and Ascan Mergenthaler.

Jinhua Architecture Park, (project by Ai Weiwei), Jinhua, China, 2002. View  from inside the BabyDragon by Herlach Hartmann Frommenwiller