At TEDxTehran, one volunteer is a gold medal swimmer. Another is a personal chef. Of the volunteers for this event, which will take place on February 14, 75% are bilingual. Meanwhile, 30% speak three languages. Organizer Sara Mohammadi decided to create a visualization, below, of the TEDxTehran volunteers because the process of interviewing them was [...]

Link to original - 

Visualizing the volunteers of TEDxTehran