After graduating in Geology, Guaita made his debut in the 1980s at a time when Italian postmodern figurative painting was undergoing a period of crisis and exhaustion. From the very beginning, his works have gone against the grain, reflecting on the destiny of modernist theory and on a post-minimalist and post-media operating condition, with no clear distinction between artistic disciplines. Bearing witness to these new lines of Italian art, he took part in Il Cangiante exhibition at the PAC in Milan in 1986 and then in the Venice Biennale in 1988. In the 1990s his work developed in irregular but systematic cycles, exploring certain recurrent themes: eighteenth-century encyclopedic knowledge, the portrayal of the world in geological and geographical terms, and monochrome as a modernist icon. He has recently held solo exhibitions at the Galleria Gentili in Prato (2009), the Galerie Bernard Bouche in Paris (2013) and the Rita Urso Artopia Gallery in Milan (2015).