Specialises in the History of the English Language, especially in the Medieval period.
Recent publications:
Osbern Bokenham's Lives of the Saints Early English Text Society OS 356 (Oxford: Oxford University Press, 2020)
Bagels, Bumf, and Buses: A Day in the Life of the English Language (Oxford: Oxford University Press, 2019)
The English Language: A Very Short Introduction (Oxford: Oxford University Press, 2018)
