Margault pursued literary studies by taking preparatory classes (Hypokhâgne) at the Lycée Jules Ferry, and validating her second year of "Licence" at the Sorbonne Nouvelle (Paris). She then joined L'Officiel de la Mode in the context of the launch of the magazine's website, L'Officiel.com, where she served as an editorial coordinator alongside the Editor-in-Chief. Meanwhile, she contributed to the group's various publications, such as Jalouse, L'Officiel Hommes, L'Officiel Shopping, and L'Officiel de la Mode, for which she was in charge of several monthly columns. Three years later, she became an independent writer and seized the opportunity to broaden her action and writing. She now writes portraits of young fashion designers for MIXT(E), and shares about beautiful apartments, designers and recipes in MilK Décoration. She also writes in English for Into The Gloss, Fashionista.com and Monocle, whose Paris Guide she contributed to by finding and commenting on the city's best spots. As the co-founder of les dactylos communication agency, she spends her time between Paris and her country house in Normandy, where she likes to write and take care of her small vegetable garden.