John Sellars is a Reader in Philosophy at Royal Holloway, University of London, a Visiting Research Fellow at King's College London, and a Member of Common Room at Wolfson College, Oxford, where he was once a Junior Research Fellow.
He was previously a Research Fellow at King’s College London, where he worked on the Ancient Commentators on Aristotle project (with which he remains involved, as Associate Editor) and, before that, a Lecturer in Philosophy at Birkbeck, University of London.
He is a founder member of the London Centre for Ancient Philosophy, alongside colleagues at KCL, UCL, and Birkbeck.
He is also a member of two non-profit organizations aimed at bringing the ancient philosophy of Stoicism to a wider audience, Modern Stoicism and The Aurelius Foundation, and he is currently Chair of Modern Stoicism.
He is a Senior Fellow of the Higher Education Academy.