Before writing Good Night Stories for Rebel Girls, Favilli worked as a journalist. She has written for The Guardian,[6] COLORS Magazine, McSweeney’s, RAI, Il Post, and La Repubblica.
Rebel Girls was founded by Favilli in 2016, with a mission to highlight the lives of important women throughout history. Under Favilli’s direction, Rebel Girls has published 4 additional children’s books.[7] Rebel Girls books have been translated into nearly 50 languages.[8]
Favilli is the creator and executive producer of Good Night Stories for Rebel Girls: The Podcast. Every episode features the story of a woman from Good Night Stories for Rebel Girls, narrated by influential women like Melinda Gates, Priscilla Chan, Jameela Jamil, and Tarana Burke.[9][10] Season 2 of Good Night Stories for Rebel Girls: The Podcast won the Best in Education at the Podcast Awards in 2019.[11]
In November 2020, Rebel Girls published Good Night Stories for Rebel Girls: 100 Immigrant Women Who Changed the World, also written by Favilli.[12][13]