The iconic "Stacks", which Cragg has repeatedly modified in his work since the 1970s, have their artistic origins in the geometrically stacked legacies of industrial society, which are ‘keys to a past time that is our present’ (Tony Cragg, 1987). The sculptures of the Turner Prize winner and multiple documenta participant evoke a state between nature and artificiality in a world of ‘semi-finished products’ (Vilém Flusser).