A humanitarian at heart, Reza Deghati is a worldwide famous photojournalist whose work you may admire on the covers of National Geographic amongst other places.
I was lucky enough to listen, interpret and admire part of his work at SIGEF 2014 in Geneva where he was also a keynote speaker focusing his presentation on the role of art and education as catalysts for social change.
Credit: Reza Deghati / http://rezaphotography.org/
Just to give a glimpse into his artwork, I chose a picture from his website (Reza Photography) which best illustrates the saying: a picture is worth a thousand words.
Communication for Development of Ideas 
Arresting image…
Indeed!
And you can actually watch it again here: https://www.youtube.com/watch?v=GnpTahuLF3w&list=UU1dCQuplvWJ_BQ8nNUYg20w
🙂
That is correct, Clément! Thank you for the link – I watched it lived in Geneva so I belong to the privileged 🙂