Niels Jørgen Christensen (NJC) works with computer graphics and applications of computer graphics for the engineering and medical area as well as for the game, media, and design world. He has great experience with graphics systems – both from an application and a system point of view. Niels Jørgen Christensen is an associate professor in computer graphics at Informatics and Mathematical Modeling (DTU.Informatics, IMM). He holds a M.Sc. degree in chemical engineering and a Ph.D. degree in the field of polymer materials from the Technical University of Denmark (DTU). NJC has been employed at DTU throughout his professional carrier, first at the Department of Planning (Graphical Communication) and since 2000 at IMM. During the years, he has been developing a series of courses in computer graphics and applications hereof. They range from application oriented courses in Virtual Reality over CAD, Scientific Visualization and Computer Animation & Modeling to more development and research oriented courses such as algorithm development and design of graphics systems, in particular with respect to photorealistic and real time visualization and appearance modeling. The research is concentrated around methods for fast and high quality rendering, for instance for using physical based material parameters as input to rendering algorithms and for the prediction of complicated optical properties of materials based on knowledge of the properties of the components. Niels Jørgen Christensen is a member of several scientific societies, among those ACM SIGGRAPH, ACM SIGCHI, ACM SIGMM, IEEE Computer Society, and Eurographics.