Most people would be happy to take credit for exhibitions at either New York’s Guggenheim museum or Milan’s Prada Foundation: Germano Celant, senior curator at the former and director of the latter, can do both. This year he curated Louise Bourgeois’s final exhibition (she died in May, the show opened in Venice in June); next year the forward thinking seventy-year old will be burnishing his legacy, as he looks back to the movement whose name he coined in 1967. 2011: Arte Povera in Italia, which involves five museums across the country, is a massive undertaking – even though Celant directed the Venice Biennale in 1997, this show looks like it could be his magnum opus.