Jessica Leech was jointly awarded her doctorate in philosophy from the Universities of Geneva and Sheffield in 2011. She held positions at King’s College, Cambridge and the University of Sheffield, before moving to King’s College London in 2016, where she is currently a senior lecturer in philosophy. Her main research interests revolve around possibility and necessity, both in contemporary logic and metaphysics, and in the history of philosophy. She is co-editor of Being Necessary: Themes of Ontology and Modality from the Work of Bob Hale (Oxford 2018, with Ivette Fred-Rivera), and editor of Essence and Existence: Selected Essays by Bob Hale (Oxford 2020).