Massimo’s work explores the nature of what we call 'art', the way that it is perceived, judged, and understood. It is an ongoing investigation of the criteria used to produce and circulate images, the power and limitations of aesthetic speculation, the possibility of redefining it in an ethical way. The artist has had solo exhibitions at West, The Hague (2014); Museo Villa Croce, Genoa (2012); Castello di Rivoli, Turin (2009); Zero..., Milan (2006/2008/2013);  Team Gallery, New York (2011/2013); and Isabella Bortolozzi Galerie, Berlin (2005). His work has also been shown as part of group exhibitions such as “Italics” at Palazzo Grassi, Venice and MCA, Chicago (2008–2009) and the 50th Venice Biennale (2003). In 2009 Grimaldi won the MAXXI 2x100 award, and allocated 92% of the 700,000 euros prize for the construction of the Emergency’s Paediatric Centre in Port Sudan.