Magnetic Resonance in Solids, 2025. Editor’s Letter

This letter provides a brief overview of scientific articles published in the Magnetic Resonance in Solids. Electronic Journal (MRSej) during 2025 (Volume 27, Issues 1-3). Fifteen research papers appeared in the volume, distributed over three issues and covering electron paramagnetic resonance of point defects in low-dimensional solids, spectroscopy and crystal-field theory of rare-earth ions, the magnetism of complex and high-entropy oxides, nuclear magnetic resonance of porous media, and the computational and instrumental underpinnings of magnetic resonance. Rather than cataloguing individual results, the present letter attempts to trace the internal coherence of the volume and to indicate the directions in which the journal’s traditional themes have developed over the past year.