The current Special Issue of Publications is dedicated to PUBMET2022, The 9th Conference on Scholarly Communication in the Context of Open Science. The PUBMET conference aimed to provide a forum for the community involved in scholarly communication and the dissemination of knowledge, inviting researchers, information and communication specialists, librarians, editors, publishers, teachers, students, research funders, policy makers, repository managers, and other stakeholders involved in scholarly communication to discuss the current changes, developments, and advancements in scholarly communication from the perspective of open science. The PUBMET conference is open to individuals who are interested in learning more about and sharing their research results and experiences on the practices in open science. The current Special Issue contains submissions of research that reflect both practical and technical innovations, which serve the implementation of open science. The following topics are addressed in the present publication: Assessing the quality of research processes, research outputs, and publication channels; Re-designing open access-rights-retention strategies and alternatives to paid OA; FAIRness of open science; The potential of public engagement with science and environmental activism; Raising efficiency and effectiveness in scholarly communication.