Janek Musek is a Faculty of Arts and Sciences, University of Ljubljana, Professor Emeritus (since 2015) and has engaged in more than twenty basic research projects, mostly as the project (program group) leader or principal investigator. Janek Musek is a Professor Emeritus at the Faculty of Arts and Sciences (University of Ljubljana, Slovenia). He wrote around 200 scientific papers and 40 books or textbooks. He is the author of several psychological models and theories, including the theory of the general factor of personality and the theory of values. He was engaged in more than twenty basic research projects, mostly as the project (program group) leader or principal investigator.