The German National Library (DNB) organizes an information day regarding the topic Open Access (OA) for its staff. The OA days take place on March 2nd, 2017 in Leipzig and on March 9th, 2017 in Frankfurt am Main. The in-house training with OA experts -from the Universitätsbibliothek Regensburg, Kooperativer Bibliotheksverbund Berlin-Brandenburg, Copernicus Publications and Springer Nature- will provide (from different prospects) an overview and definition of OA and describe the benefits for science and research. New challenges and possibilities for scientific libraries, publishers and for the DNB in the near future will be highlighted. Kristina Eckl and Christian Schütz (both from ISSN Germany) will hold a presentation about ROAD: the Directory of Open Access scholarly Resources produced by the ISSN Network.