Jean-Michel Billioud studied at the Institut Français de Presse and the Ecole des Hautes Etudes en Sciences Sociales. He has since published a hundred non-fiction books on various themes with two obsessions: explaining things as simply as possible and rescuing from oblivion what time wants to erase. He lives in France.
Gonoh is a French illustrator based in Paris. He studied illustration and worked as a graphic designer in different agencies before turning exclusively to illustration. He has worked with Decathlon, ADP, BNP Paribas, Télérama, and Brasserie La Parisienne.