- *The Medici:Godfathers of the Renaissance* (2006)
- *A Brief History of Secret Societies* (2007)
- *Sex and the City*:A Cosmological Approach (2008)
- *In the Name of God:The Role of Religion in the Modern World* (2010)
- *The Prince* av Niccolò Machiavelli (2012, oversettelse og kommentarer)
- *Art Deco:The History and Influence of the Decorative Style* (2013)
- *The Birth of Europe:A History of the Continent before Christianity* (2014)
- *The Birth of the Modern World:A History of the Last Two Thousand Years* (2016)
- *The Medici:Power, Money, and Art in Renaissance Florence* (2017)
Artikler og essays
- "Medici og renessansen" (2003)
- "Secret Societies and the Power of Ritual" (2005)
- "Sex and the City:A Cosmological Approach" (2006)
- "I Guds navn:Religionens rolle i den moderne verden" (2008)
- "Prinsen av Niccolò Machiavelli:En oversettelse og kommentar" (2010)
- "Art Deco:The History and Influence of the Decorative Style" (2011)
- "The Birth of Europe:A History of the Continent before Christianity" (2012)
- "The Birth of the Modern World:A History of the Last Two Thousand Years" (2014)
- "The Medici:Power, Money, and Art in Renaissance Florence" (2015)
Andre verk
- Bidragsyter til den italienske Enciclopedia Treccani
- Gjestetaler ved Universitetet i Firenze, Universitetet i Siena og Universitetet i Bologna
- Kurator for utstillingen "The Medici:Godfathers of the Renaissance" på Palazzo Medici Riccardi i Firenze (2006)