- _On the Origins of Modern Science: Essays on Medicine and the Scientific Revolution_ (1998)
- _The Science of Statecraft: Aristotle to Machiavelli_ (2010)
- _The Invention of the Human Self_ (2013)
- _The New Science of Politics_ (2016)
- _How To Think Well About Philosophy: A Guidebook to the Philosophic Tradition_ (2018)
- _The Book of Love: A Cultural History from Antiquity to the Present_ (2021)
Fiction:
- _The Adventures of Sir Prudence: Book One of The Philosophers' Stone Chronicles_ (2009)
- _The Misfortunes of Sir Prudence: Book Two of The Philosophers' Stone Chronicles_ (2012)
- _The Triumph of Sir Prudence: Book Three of The Philosophers' Stone Chronicles_ (2015)