Guillaume Chillet

A psychologist by training and a specialist in cognitive science, Guillaume Chillet has spent the last 25 years working to understand the mechanisms of perception, information processing, and action. As head of humanities and social sciences at the Defense Innovation Agency (AID), he is interested in all the major developments facing the Ministry of the Armed Forces in order to maintain its operational performance.

Information manipulation, which exploits flaws in human judgment, is one of these major areas: it affects society as a whole and has a direct impact on the world of defense. His book, Petit Traité de Souveraineté Cognitive (2026), offers a concrete, jargon-free approach to help everyone learn how to protect their mental territory.