“Collections management policy is about bringing an institution to life through all its facets”. Interview with Yaëlle Depuydt • Now director of the future multimedia library in Cysoing (Nord) – a hybrid and participatory multimedia library project –, Yaëlle Depuydt has simultaneously developed a training activity in collections management policy, especially on the issue of networks. She is also committed to the issue of job training by being responsible for the ABF Hauts-de-France library assistant training since 2019. Yaëlle Depuydt shares with the “Bulletin des bibliothèques de France” how she envisions collections management policy, as well as practical advice and benchmarks.