Ernst Kruijff is interim professor for computer graphics and interactive environments at the Bonn-Rhein-Sieg University of applied sciences, where he heads the 3DMi group. The group focuses on the human-factors driven design of multi-sensory 3D user interfaces. Previously, Ernst among others worked at CURE, Graz University of Technology, Fraunhofer IMK, and Bauhaus University where he coordinated several large German and European research projects in the field of virtual and augmented reality. He received his PhD (with honours) from Graz University of Technology, and an M.A. from Utrecht University, Netherlands. His work has been presented at conferences such as IEEE VR, 3DUI and ISMAR, and ACM VRST.