O'Brien, Karen (1997). Narratives of enlightenment: cosmopolitan history from Voltaire to Gibbon. Cambridge: Cambridge University Press. ISBN978-0521465335.
O'Brien, Karen (2009). Women and Enlightenment in eighteenth-century Britain. Cambridge: Cambridge University Press. ISBN978-0521773492.
Garside, Peter; O'Brien, Karen, eds. (2015). English and British fiction: 1750-1820. Oxford: Oxford University Press. ISBN9780199574803.
O'Brien, Karen; Young, Brian, eds. (2018). The Cambridge companion to Edward Gibbon. Cambridge: Cambridge University Press. ISBN978-1107035119.