[3] In the 1990s, she studied the works of Rousseau, Hegel and Marx and the philosophical issues that led to the development of anti-Christianity in Europe.
She later also analysed Michelangelo's Sistine Chapel frescoes, and wrote a critique of Darwinist ideology.
[3] As a journalist, Giannetta wrote for newspapers such as La Stampa, Il Giorno and Corriere della Sera and for magazines such as Gioia, Anna and Oggi.
[3] She became the second wife to Francesco Alberoni, a sociologist, in 1988, and began using his surname in addition to her own, as marketing tool to promote her books.
[3][5] Giannetta died on 3 January 2021 at her home in Forte dei Marmi after an illness.