Il satanismo (Collana religioni e movimenti), Elle Di Ci (1997), ISBN 88-01-00799-X
I nuovi culti: Dagli Hare Krishna alla Scientologia (Uomini e religioni), Mondadori; 1. ed. Oscar Uomini e religioni edition (1990), ISBN 88-04-34057-6
The Unification Church (Studies in Contemporary Religions, 2), Signature Books (September 1, 2000) ISBN 1-56085-145-7
Les Mormons, Brepols (December 30, 1996), ISBN 2-503-50063-3
Osho Rajneesh: Studies in Contemporary Religion (Studies in Contemporary Religions, 4), Signature Books (August 1, 2002), ISBN 1-56085-156-2 (by Judith M. Fox, with Massimo Introvigne as the Series Editor)
I nuovi movimenti religiosi: S?tte cristiane e nuovi culti, Editrice Elle Di Ci (1990), ISBN 88-01-14260-9
Il ritorno dello gnosticismo (Nuove spiritualit?) , SugarCo (1993), ISBN 88-7198-216-9
"Lectorium Rosicrucianum: A Dutch Movement Becomes International, " in New Religions in a Postmodern World, Mikael Rothstein and Reender Kranenborg, eds., (Aarhus: Aarhus University Press, 2003), pp. 11-22.
«Christian New Religious Movements: A Roman Catholic Perspective» and "New Religious Movements and the Law: A Comparison between Two Different Legal Systems — The United States and Italy, " in New Religions and New Religiosity, Eileen Barker and Margit Warburg, eds., (Aarhus: Aarhus University Press, 1998), pp. 243-261 and 276—290.
«The Secular Anti-Cult and the Religious Counter-Cult Movement: Strange Bedfellows or Future Enemies?» in New Religions and the New Europe, Robert Towler, ed. (Aarhus: Aarhus University Press, 1995), pp. 32-54.
"Occult Masters and the Temple of Doom: The Fiery End of the Solar Temple, " (co-authored with Jean-Francois Mayer) in Cults, Religion and Violence, David G. Bromley and J. Gordon Melton, eds., (Cambridge: Cambridge University Press, 2003), pp. 170-188.
"Children of the Underground Temple: Growing Up in Damanhur, " in Children in New Religions, Susan J. Palmer and Charlotte E. Hardman, eds., (New Brunswick: Rutgers University Press, 1999), pp. 138-149.
«After the New Age: Is There a Next Age?» in New Age Religion and Globalization, Mikael Rothstein, ed., (Aarhus: Aarhus University Press, 2001), pp. 58-69.