The special issue arises out of a recent and very successful meeting, “Dynamic Sun II: Solar Magnetism from Interior to Corona”, Siem Reap, Cambodia (http://star-lab.group.shef.ac.uk/Conferences/Cambodia_2018/index.html), organized by the guest editors, and will address the role of the solar magnetism in the variety of dynamical plasma processes which are responsible for the energy transport from the interior of the Sun to the outer layers of the solar atmosphere. It will also include papers devoted to the Sun-driven magnetospheric dynamics. The main focus of the special issue will be to discuss in detail the recent achievements in understanding photospheric, chromospheric and coronal dynamics, energy transport between the lower and upper layers of the solar interior and the solar atmosphere, and dynamical processes in the confined solar transients. Special attention will be paid to the key results and goals of the current and proposed space and ground-based instruments. These topics are also aligned with the long-term goals of current and proposed space/solar missions. This paper collection will be also useful for future scientific data interpretation from forthcoming new-generation ground-based instruments, e.g. the Daniel K. Inouye Solar Telescope (DKIST, USA), the European Solar Telescope (EST, Europe), new Indian facilities (MAST, upcoming 2m-NLST, Aditya-I), and more recently CHROMIS (located alongside CRISP at the Swedish 1-m Solar Telescope), which will be able to significantly advance scientific understanding of our solar-terrestrial environment. The special issue has the following scientific themes:

• Magnetized solar photosphere: coupling with sub-layers, dynamical phenomena, and waves;
• Chromospheric dynamics and heating processes;
• MHD waves: observations and modelling in various magnetic structures and seismology;
• Plasma flows on diverse spatio-temporal scales;
• Instruments and their novel science aspects;
• The Sun-driven magnetospheric dynamics.