Special issue of J. Magn. Magn. Mater., “Physics of Magnetism 2023 – Special issue in memory of professor Roman Micnas”, consisting of articles presented at The European conference Physics of Magnetism 2023: In memory of Professor Roman Micnas

The European Conference PHYSICS OF MAGNETISM 2023 (PM’23) was held on June 26–30, 2023 in Poznań, Poland. It was the 17 ^th in a series of conferences organized by the Faculty of Physics of the Adam Mickiewicz University and the Institute of Molecular Physics of the Polish Academy of Sciences. The PM’23 conference was dedicated to the memory of Professor Roman Micnas, a long–time co-organizer of the conference, and its co-chairman since 1993. The preface presents basic information about the topics and events related to the PM’23 conference.