Wiebke-Marie Stock, (Universität Bonn, Germany; University of Notre Dame, USA) works on ancient philosophy with a focus on Plato and the Platonic tradition. Her publications include Plotinus. Ennead III 4. On Our Allotted Guardian Spirit (2020) and Theurgisches Denken. Zur "Kirchlichen Hierarchie" des Dionysius Areopagita (2008).