Dr Littlejohn is currently finishing a monograph on epistemic justification which is under contract with Cambridge University Press and about to start work on an introduction to epistemology for Wiley-Blackwell.
In epistemology, he works on the internalism/externalism debate, the nature of reasons for belief, epistemic value, the epistemology of perceptual belief, and the relation between theoretical and practical reason.
He is also interested in issues in ethical theory. In particular, he is interested in the issues having to do with the moral significance of intention, the moral significance of an agent’s epistemic limitations, and whether intuition can serve as a source of moral knowledge.
For details of Dr Littlejohns books and articles, please see his publications.