Plasma, sometimes called the fourth state of matter, is a multifaceted substance which poses a variety of challenges. Plasma physics deals with the complex interaction of many charged particles with external or self-generated electromagnetic fields. It is this unique entanglement which makes plasma physics a fascinating field for basic research. At the same time, plasma plays an essential role in many applications, ranging, e.g., from advanced lighting devices and surface treatments for semiconductor applications or surface layer generation to the efforts to tame nuclear fusion as an energy source for our future harnessing the nuclear processes which fuel our sun.