Abstract art: from the radical to the everyday

Mondrian’s bold grids, Malevich’s Black Square, Jenny Holzer’s top secret redacted government documents ... a new exhibition celebrates the point and edge of 100 years of abstractionLast year Tate Modern successfully reawakened interest in the Russian suprematist Kazimir Malevich. This year the Whitechapel Gallery kick-starts a groundbreaking exhibition of 100 years of geometric abstraction, Adventures of the Black Square, with an allusion to Malevich’s famous work, first shown