☆☆☆ Known Unknowns (until 24 Jun): The usual sparse set of big sploshy canvases, best viewed at fast walking pace.
★☆☆ Ian Cheng: Emissaries (until 28 May): Three-part digital myth, videogame style, in half a gallery. I tried getting into it, but no.
★★☆ Sondra Perry: Typhoon coming on (until 20 May): Meanwhile at the Sackler, huge wavy video walls with a hint of slavery. Immersive, but thin.
★★☆ Anthea Hamilton: The Squash (until 7 Oct): A solo performer wearing a gourd-like head inhabits the terrazzo and acts vegetable. Memorably surreal.
Tate Modern (Tanks)
★★☆ Joan Jonas (until 5 Aug): Free annexe to the current £13 exhibition upstairs. Sparkly eco-aware video-led performance art.
White Cube (Bermondsey)
★★★ Léon Wuidar (until 1 Jul): Abstract geometry, like some kind of Belgian semaphore. Just the one room, with notebook miniatures.
★★☆ Beatriz Milhazes - Rio Azul (until 1 Jul): Riotously colourful patterns, spangly shower curtains and a big tapestry. Proper vivid.