In January 2010, Emilio Fantin, Luigi Negro, Giancarlo Norese and Cesare Pietroiusti exhibited a sculpture made with discarded fragments left from artworks by other artists. One year later, in January 2011, curators Rita Correddu and Alice Militello – on behalf of the City of Bologna – produced and presented this booklet as one of the "ArteFiera off" events.