Libraries as agents of political socialisation and development of collective points of view. Interview with Denis Merklen • Denis Merklen is a sociologist and assistant professor at Sorbonne Nouvelle University. He is notably the author of “Pourquoi brûle-t-on des bibliothèques?”, published by Presses de l'Enssib in 2013. As debates about “cancel culture” and freedom of speech regularly erupt in the French media, how should collections management policy be tackled? Beyond the most technical aspects, how can we envision the act of creating collections? Denis Merklen shares his analyses with the “Bulletin des bibliothèques de France”.