Julien Rosanvallon: « Audience measurement is crucial at a time when the prospects for convergence opened up by digital have never been greater for video formats, but also for audio ».

A few days before the presentation of Médiamétrie’s cross-media committee, which will notably integrate Netflix and YouTube, three experts publish a comprehensive work on audience measurement, studying its history and future prospects. At the start of 2025, Benoît Cassaigne, Julien Rosanvallon and Philippe Tassi publish their book « La mesure des médias. Histoire, enjeux et perspectives » published by Economica. All three are associated with Médiamétrie, the French benchmark in audience measurement: Benoit Cassaigne was Deputy CEO until 2020, Julien Rosanvallon is currently Deputy CEO, while Philippe Tassi was both Scientific Director and Deputy CEO until 2019. The book is presented as an educational, business and scholarly…