Peter Pagin is professor of theoretical philosophy at Stockholm University. He has worked mostly within the philosophy of language and bordering areas, including the philosophy of logic, philosophy of mind, epistemology, and formal semantics. His areas of research include assertion, linguistic meaning, compositionality, vagueness, semantic holism, non-extensional contexts, propositions, and the philosophy of Frege, Carnap, Quine, Davidson, and Dummett. He has published numerous papers on these topics, most recently ’Tolerance and higher-order vagueness’, in Synthèse, and ‘Constructing the world and locating oneself’, in Review of Philosophy and Psychology, both 2017. He has collaborated extensively with Dag Westerståhl and Kathrin Glüer, and still does.