Libraries already operate institutional or specialist repositories for research data, license research data or make them openly available and impart data management skills to scientists. The ZBW and Mannheim University Library are involved in the consortium BERD@NFDI for the establishment of a Germany-wide infrastructure for the management of non-standardized and unstructured data for economics and related disciplines. BERD@NFDI services and tools are supplemented by corresponding training courses in the field of data literacy. At the Bibliohekskongress 2022 in Leipzig, Klaus Tochtermann and Sabine Gehrlein offer an overview of the range of library activities.