The Review of the handbook literature on doctoral supervision by Søren S. E. Bengtsen from 2014 offers an easy introduction. Of course, the paper is already a few years old, but it is still an excellent starting point to dive into the subject. It provides a good overview of the most important topics and results in the expanding field of research in doctoral supervision. It is also a source of information, especially for new supervisors who can benefit from research into more experienced supervision practice. As Søren S. E. Bengtsen writes in the introduction, the aim of the review is not to repeat an already robust range of publications, but to condense the broad spectrum of studies and to select the key issues that are addressed in different types of studies and international educational contexts.
When I started to work at the Center for Doctoral Studies in 2010, I was new in the field of doctoral education. Thus, to get a broader understanding of the developments in doctoral education at the University of Vienna, my senior colleagues recommended me to read the 10 Salzburg Principles from 2005, which mark the beginning of new developments in doctoral education in many European countries.