The arresting pictures of Frida Kahlo (1907-54) were in many ways expressions of trauma. Through a near-fatal road accident at the age of 18, failing health, a turbulent marriage, miscarriage and childlessness, she transformed the afflictions into revolutionary art.
In literal or metaphorical self-portraiture, Kahlo looks out at the viewer with an audacious glare, rejecting her destiny as a passive victim...