This is an invited talk prepared for the April 2, 2023, workshop "Exploring National Infrastructure for Public Access and Impact Reporting," sponsored by the National Science Foundation and co-organized by Christina Drummond and Charles Watkinson. The workshop was coordinated with the Coalition for Networked Information (CNI) just before the Coalition's annual spring member meeting in Denver, CO.  The presenter is Niels Stern,  Director of the OAPEN Foundation, https://www.oapen.org/oapen/7664742-team. Niels is also co-Director of the Directory of Open Access Books, https://www.doabooks.org/en/doab/article/who-is-responsible-for-doab