Nunzio was born in Cagnano Amiterno (AQ) in 1954 but he lives and works in Rome.
His beginnings as an artist date back from 1980. In 1984, the exhibition entitled Ateliers cured by Achille Bonito Oliva at the former Cerere bakery, on Via Degli Ausoni in Rome marked the birth of the group called La Nuova Scuola Romana, whose members were Marco Tirelli, Nunzio, Piero Pizzi Cannella, Bruno Ceccobelli and Giuseppe Gallo.
At the beginning, Nunzio used plaster for his works but in 1985, he chose burnt wood, then lead and iron. The blackened surfaces even blacker compared to white plaster are vital and strongly plastic. They absorb light and, charging themselves with energy, make forms vibrate in their close dialogue with space. That perception changes, following the mutations of that dialogue.

Among Nunzio's most important recent exhibitions, it's worth mentioning his participation in the Venice Biennial in 1986, where he was awarded the Premio 2000 as the best young artist. In 1997, his one-man show was presented by the Galleria Civica of Modena. In 1995, Nunzio held an exhibition presented by the Galleria d’Arte Moderna of Bologna, where he exhibited his works for Villa delle Rose. He was also invited to participate in the Venice Biennial with a solo room, for which he was awarded a honorable mention. In 1998, he was awarded the Presidente della Repubblica award, granted by the Accademia Nazionale di San Luca. In 2003, on the occasion of the Semester of the Italian Presidency of the Council of the European Union, he took part in the exhibition entitled Futuro Italiano presented at the European Parliament in Brussels.

Nunzio's relationship with Galleria Fumagalli began in 1999. In 2000, a solo exhibition along with a volume with texts by Marco Meneguzzo were presented at the gallery.