The tailor who created the emperor’s new clothes: ‘Artists have been challenging what we perceive to be art for nearly a century, from Marcel Duchamp’s provocative placement of a signed urinal in an open-submission exhibition in 1917, to Yves Klein’s empty white gallery exhibited as The Void in 1958. Perhaps we should be grateful that in Creed’s Turner Prize artwork, the lights go on and off every five seconds – in 1966, Arte Povera artist Alighiero e Boetti unveiled his Yearly Lamp, which flickered into life on only one unspecified day per year.’ Charlotte Mullins, former editor of Art Review and anti-minimalist, on the Turner Prize. Independent UK