The Journal of Universal Computer Science (J.UCS) is a high-quality periodical which deals with all research areas of computer science and has been appearing in digital and printed form since 1995. With its free-of-charge policy for both authors and readers, and an acceptance rate below 20% its volumes have been documenting, connecting and reflecting novel aspects of computer science over decades until today. J.UCS’ peer-reviewed monthly Regular Issues and Special Issues on selected topics organized by guest editors thus continuously serve as one of the major knowledge bases for the international research community in computer science.