Piero Gilardi was an influential figure in the development of Arte Povera (poor art) in Italy in the late 1960s centred in Turin – a movement that still influences art today. From the outset, he was concerned with creating social relations through art. Collaborative Effects tracks Gilardi’s approach to collaboration within and outside the art world over a 22-year period from 1963 to 1985 through his interactive sculptures and his creative work with social and political movements. It brings both these stories up-to-date through the inclusion of recent sculptures and work relating to anti-Austerity and environmental campaigns in Italy. Collaborative Effects reveals the significant role Gilardi played in the development of the Italian and international avant garde of the late 1960s and 70s. It also reveals him as an important precursor of participatory and socially-engaged art practices today.