The Chinese artist goes large on colonialism, a group show tackles a fun theme and Xanthe Somers’ stoneware fools the eye – all in your weekly dispatch
Ai Weiwei: Button Up!
If any artist can fill the vast home of Factory International, it’s Ai Weiwei, with an installation about world history, colonialism … and buttons.
• Aviva Studios, Manchester, from 2 July to 6 September

