She is the founding director of international advisory and research company Counterpoint...[1][2][3] Fieschi's work has been credited with conceptualising a "new vision of populism as an ideology".
[4] Born in Senegal in a family of French diplomats, Fieschi attended secondary schools in France, Italy and the United States before studying at McGill University in Canada.
[8] Fieschi returned to academia for a number of months from late 2019 to establish the Global Policy Institute at Queen Mary University of London.
[12] The book received widespread attention, including in the Financial Times, which highlighted how Fieschi combines "conceptual analysis with real examples to chart the historic evolution of populism.".
[13] A review of the book by Ben Margulies of the London School of Economics complemented Fieschi's "novel theoretical contributions" as "a welcome addition to the literature on the subject.