Mikael’s talk focuses on long-term preservation of open-access publications, discussing challenges and best practices both resulting from insights of research by Mikael himself as well as that produced by others. The diverse, distributed, and democratic nature of open access publishing is a richness but also puts pressure on existing infrastructures to comprehensively capture and preserve content before it is too late. It has been about five years since Mikael and his colleagues published the initial results of a paper titled “Open is not forever: A study of vanished open access journals” that highlighted the urgent need to improve the circumstances for long-term preservations of in particular open access journals. Important steps by different actors have been taken since then but there is still a substantial amount of published materials that are at risk of becoming unavailable unless continued efforts are made to make preservation options as accessible as possible and encourage journals to sign up to them. For open access books the situation is much harder to gauge with certainty due to the different nature of metadata on books and their preservation information, but a recent study by Mikael titled “Open access books through open data sources: Assessing prevalence, providers, and preservation” sheds light on some of the main challenges that would need to be addressed in order to bring more resilience and long-term preservation practices into the space for open access books.