Axis is a signifier in sculpture, and South African artist Bronwyn Katz has a history of making resolutely vertical sculptural pieces. Installed in the main gallery of her phonetically engaged exhibition “/ // ! ǂ” at Blank Projects are two dozen slender columns made of steel wool and cardboard, their gray surface covered with a weave of raspy copper mesh. Flanked by three flowing wire tapestries of variable lengths and widths, titled kx (i)–(iii) (2019), the vertical form of Katz’s enigmatic floor piece, x (2019), recalls her breakthrough BFA work, Ouma Grootjie [Grandma] (2015), a freestanding column made of gray bricks and green soap blocks that, still now, reads as steadfast exclamation mark from a year colonial statues were toppled in South Africa. Katz, who graduated from the University of Cape Town in 2015 with an impressive cohort that included Simphiwe Ndzube and Siwa Mgoboza, has quickly distinguished herself with her coolly minimal abstract sculptures exploring social issues around land, homelessness, and belonging. A founding member of the all-women collective iQhiya, who participated in Documenta 14, Katz’s personal work has been widely exhibited too, notably in Dakar, Marrakesh, and Paris. The artist’s 2018 solo exhibition at the Palais de Tokyo featured …