Tuomas Tahko is Professor of Metaphysics of Science at the University of Bristol. He has worked in Bristol since 2018. Before that, he worked at the University of Helsinki for seven years. Tahko has also been a Visiting Scholar at the University of Sydney, University of Toronto, University of Reading, New York University, the University of North Carolina at Chapel Hill, and the eidos Centre in Metaphysics of the University of Geneva. He earned an MA in philosophy from Helsinki in 2005 and a PhD in philosophy from Durham in 2008 (under E.J. Lowe's supervision), where he remained as a Visiting Research Fellow for two years, before coming back to Finland, Tahko's work is mostly in analytic metaphysics and his primary research interests concern the metaphysics and epistemology of modality, methodology of metaphysics, essence, natural kinds, laws of nature, and a priori knowledge. Additional research interests include epistemology, philosophical logic, philosophy of mind, philosophy of science, and history of philosophy (Aristotle). For further information, see his website: www.ttahko.net