- *Il romanzo della mia vita* (2006)
- *La vita è bella* (2008)
- *Il mondo è mio* (2010)
- *La mia casa è il mondo* (2012)
- *Il mio sogno è la pace* (2014)
- *La mia famiglia è l'umanità* (2016)
- *Il mio amore è la vita* (2018)
- *La mia speranza è il futuro* (2020)
Gaudio has also written several articles for newspapers and magazines, including *La Repubblica*, *Il Corriere della Sera*, and *L'Espresso*. He is a regular contributor to the Italian radio station Radio Radicale.
In addition to his writing, Gaudio has also been involved in several social and political initiatives. He is the founder of the non-profit organization "Un Mondo Unito per la Pace" (A United World for Peace), which promotes peace and understanding between different cultures and religions. He is also a member of the Italian Parliament, where he serves on the Committee for Foreign Affairs.