LIBER is Europe’s principle association of research libraries, consisting of nearly 450 national, university and other libraries from more than forty countries. It was founded as an association in 1971 under the auspices of the Council of Europe and became a Foundation under Dutch law in 2009. LIBER’s aims to help European research libraries to support a functional network across national boundaries in order to ensure the preservation of European cultural heritage, to improve access to collections in European research libraries, and to provide more efficient information services. Enabling Open Science is a major priority for LIBER, as is promoting innovative scholarly communication, fostering digital skills and services, and engaging with world-class e-infrastructures. The LIBER 2018-2022 strategy “Powering Sustainable Knowledge in the Digital Age” addresses these areas with commitments to working groups, international project partnerships, policy development and coordination, lobbying and advocacy at the EC level, and supporting leadership and digital skills.