Marie studied philosophy in France, at the Ecole Normale Superieure (Fontenay St Cloud), at the Ecole des Hautes Etudes en Sciences Sociales and at the Institut Jean Nicod, where she did her PhD as well as an M.Sc. in cognitive science. She also studied fine arts at the Ecole Nationale Superieure des Arts Decoratifs (Paris). Before joining Essex, she was a research fellow at the Institut Jean Nicod, at LOGOS (Universitat de Barcelona), and at University College London. She has published articles in journals such as Ergo, Synthese, Teorema, the Review of Philosophy and Psychology and Philosophical Explorations, and she is co-editing with Manuel Garcia-Carpintero (LOGOS) a volume of essays provisionally entitled Mineness (under contract with OUP). In 2021-2, she is working on truth, trust and dishonesty as a Fellow within the Honesty Project (Wake Forest University / Carnegie Mellon University): https://honestyproject.philosophy.wfu.edu/funding-competition-winners/.