Monograph developing an integrated, knowledge-based account of the normativity of constative speech, in conjunction with classical invariantism about knowledge attributions.

The first volume to explore the topic of defeat in all its facets. Brings together work in epistemology, ethics, and practical reasoning.

Geometrical Shapes

Coming soon, watch this space!

Monograph in press. Sharing Knowledge: A Functionalist Account of Assertion (with C. Kelp) Cambridge University Press.


AoS: Epistemology, Philosophy of Language, Ethics, Feminist Philosophy, Social & Political Philosophy
AoC: Social Ontology, Philosophical Methodology, Philosophy of Biology, Media and Communication Theory


  • 2021. Shifty Speech and Independent Thought: Epistemic Normativity in Context. Oxford University Press. 

  • In Press. Sharing Knowledge: A Functionalist Account of Assertion. Cambridge University Press (with Chris Kelp).


  • 2021. Reasons, Justification, and Defeat (with Jessica Brown, eds.). Oxford University Press.​​


  • Forthcoming. Synthese Special Issue: Knowledge First Epistemology (with C. Kelp, eds.). 

  • Forthcoming. Philosophical Topics Special Issue: Epistemology (with A. Carter, C. Kelp, and J. Lyons, eds.)

  • 2020. Ethical Theory and Moral Practice BSET Special Issue: 'Ethics, Knowledge, and Language,' Vol 23/1​ (with R. Cowan, eds.) Online  here.



  • Forthcoming. Justification and Knowledge: Which One First?. Contemporary  Debates in Epistemology, Volume 3 (eds. M. Steup, J. Turri and E. Sosa), Wiley-Blackwell.

  • Forthcoming. Function and Epistemic Normativity (with C. Kelp). Blackwell Companion to Epistemology, Wiley-Blackwell.

  • Forthcoming. Epistemology. The Cambridge Handbook of Analytic Philosophy (ed. M. Rossberg).

  • Forthcoming. A Social Epistemology of Assertion (with C. Kelp). Oxford Handbook of Social Epistemology, Lackey J. and McGlynn A. (Eds.). Oxford University Press.

  • Forthcoming. Knowledge and Disagreement (with F. Broncano-Berrocal). Routledge Handbook of Disagreement, (M. Baghramian, A. Carder, and R. Rowland eds.), Routledge.

  • Forthcoming. Assertion Compatibilism. In Skeptical Invariantism Reconsidered, C. Kyriakou, C. and Wallbridge, K. (eds.), Routledge. pdf

  • Forthcoming. Scepticism about Epistemic Dilemmas. Epistemic Dilemmas: New Arguments, New Angles (eds. K. McCain, S. Stapleford & M. Steup), Routledge.

  • Forthcoming. On Behalf of Knowledge-First Collective Epistemology (with A. Carter and C. Kelp). Doxastic and Propositional Warrant, Paul Silva and Luis Oliveira (eds.), London: Routledge. pdf

  • Forthcoming. Closure, Warrant Transmission, and Defeat. In Epistemic Closure and Transmission, Eds.: Jope M. and Pritchard, D. Routledge.

  • Forthcoming. Gender, Race, and Group Disagreement (with M. Miragoli). In Group Disagreement, Carter, A and Broncano-Berrocal, F., Routledge.

  • 2021. Introduction (with J. Brown). Reasons, Justification, and Defeat. Oxford: Oxford University Press.

  • 2020. The Ethics and Epistemology of Trust. (with A. Carter). Internet Encyclopaedia of Philosophy.

  • 2020. Social Epistemology of Education. Encyclopaedia of Educational Theory and Philosophy. Springer: Netherlands.

  • 2020. Epistemic Virtues and Virtues with Epistemic Content (with C. Boult, C. Kelp and J. Schnurr). In Greco, J. and Kelp, C. (eds.), Virtue Theoretic Epistemology: New Methods and Approaches. Cambridge University Press.

  • 2019. Hermeneutical Injustice as Basing Failure. In Bondy, P. and Carter, J.A. (eds.), Well Founded Belief: New Essays on the Epistemic Basing Relation, Routledge.

  • 2018. Assertion: The Constitutive Norms View (with C. Kelp). In Goldberg, S. (ed), Oxford Handbook of Assertion. Oxford University Press.

  • 2016. Knowledge, Rational Credibility, and Assertion: The Scoreboard. In Grajner, M. and Schmechtig, P. (eds), Epistemic Reasons, Epistemic Norms and Epistemic Goals, DeGruyter Berlin/Boston.​




  • Manuscript Under Review. Epistemic Norms and Epistemic Functions​ pdf. (current version, comments much appreciated).

Articles Under Review

  • The Epistemic Normativity of Conjecture

  • Expressive Power and the Ethics of Meaning Production

  • The Epistemic Improvement Account of Disagreement (with F. Broncano-Berrocal)

  • Knowledge and Reasoning (for a special issue of Synthese on 'Knowledge and Decision, eds. The Hamburg Knowledge and Decision Group).​

  • She's a She: Sexual Justice Through Linguistic Innovation for Gender Terms (with C. Kelp)

  • What is Trustworthiness? (with C. Kelp) pdf

In preparation

  • Knowledge First Social Epistemology (Book Manuscript)

  • What Is Normative Defeat? (with C.  Kelp)

  • Proper Suspension 

  • Speech Acts in Context. Volume co-edited with Herman Cappelen.

  • Epistemic Encroachment (with Bob Beddor)

  • Group Belief and Responsibility Transmission (with C. Kelp and G. Pettigrove)

  • Blameworthiness in Epistemology

  • Basing as Following Indicators

  • Reasons to Believe as Knowledge Indicators

  • A Priori Testimonial Entitlement, Knowledge First (for Episteme Special Issue)

  • Girl-Tech and Metalinguistic Negotiation. Feminism and Philosophy of Technology (eds. M. Edwards and S.O. Palermos).