Ai Weiwei: Button Up! review — the artist goes big, but I wanted more The TimesAi Weiwei Relives His Detention in 24-Hour Long Performance HypebeastHistory, colonialism and 4 million buttons in pictures as world-leading artist Ai Weiwei takes over Manchester Manchester Evening NewsAi Weiwei: ‘Exile makes you constantly feel you’re an outsider’ The Times