Philip Steinberg is UArctic Chair in Political Geography at Durham University, where he researches oceanic spaces, with a focus on the ways in which water, in its liquid, solid, and gaseous states, challenges Western, continentalist notions of place and territory. He is the author or editor of seven books, including The Social Construction of the Ocean (2001), Contesting the Arctic: Politics and Imaginaries in the Circumpolar North (2014), Territory Beyond Terra (2018), and, most recently, The Routledge Handbook of Ocean Space (2022). A committed advocate of transdisciplinary research and pedagogy, he directs the Northern Ireland / Northeast England Doctoral Training Partnership (NINE DTP), the Durham Arctic Research Centre for Training and Interdisciplinary Collaboration (DurhamARCTIC), and IBRU: Durham University’s Centre for Borders Research. From 2009 through 2019 he served on the editorial team of Political Geography including, from 2016 through 2019, as the journal’s editor-in-chief.