From scientificamerican.com:
Perrin Ireland is an artist who does this - turning the words, sounds, sights and smells of the event into cartoons. A couple of weeks ago she attended the World Science Festival in New York, where she live-drew several sessions. Two of those visual summaries we have already published here at ScientificAmerican.com - All about Stories: How to Tell Them, How They're Changing, and What They Have to Do with Science and The Bezos Scholars Program at the World Science Festival.
Here is the third, on Scents and Sensibilities: The Invisible Language of Smell. If you prefer just text, you can read the summary of the session by Greg Boustead here and the choice quotes from the event here. But if you are more of a visual type, just scroll down slowly....
You can find more of Perrin's work here, and follow her on Twitter at @experrinment.