The podcast appeals to publishers looking for a new audience. Last year, Calmann-Lévy published the audio serial version of Laurent Combalbert's thriller Négo.

Hatier has launched three podcast series inspired by its "Annabac" collection to review the history, economics and philosophy tests. "Cultural consumption patterns have evolved. For example, podcasts are a very popular format among young people," says Rachel Duc, director of education at Hatier. "We're trying to adapt...