How do I look like?

From time to time, people (mostly conference organizers) ask me for a picture of mine. Feel free to use one of these images.

Me in front of a whiteboard, pointing at a graph
  • Me in front of a screen that shows a bar chart
  • Me in front of a whiteboard, pointing at a graph
Me in front of a screen that shows a bar chart
Me in front of a whiteboard, pointing at a graph