Niklas Keller is Founder and Managing Partner of Simply Rational – The Decision Institute, a spin-off of the Max-Planck-Institute of Human Development. He is furthermore Associate Research Scientist at the Center for Anaesthesiology and Intensive Care Medicine of the Charité University Medicine, Berlin, as well as Associate Researcher at the Division of Ergonomics of the Technical University, Berlin. His research focusses on the design of simple and robust decision aids for use in situations characterized by time pressure, stress, and high stakes (military, police, emergency medical services), designing interventions for the transparent and intuitive communication of risk and uncertainty, as well as assessing and counteracting defensive decision making in organizational contexts. Niklas holds a BSc in Psychology, an MSc in International Relations and a PhD in Psychology. He has given lectures and trainings to the German Armed Forces and the Police and has trained over 1000 medical students and professionals in risk literacy, as well as developed and implemented curricular content on risk literacy and risk communication for the medical curriculum for the Charité University Hospital and the University Hospital Heidelberg.