It’s a diploma by Melih Bilgil.

History of the internet is an animated documentary explaining the inventions from time-sharing to file-sharing, from arpanet to internet.
The history is told with help of the PICOL icons, which are also a part of my diploma. The icons are soon available for free on picol.org

Standing in one of the moss and dirt covered tunnels in Leeds, England, Paul Curtis, “Moose” as he calls himself, saw marks on the wall where the shoulders of unsteady drunks and the fingertips of curious children had exposed the shiny white tile. And with only a pair of socks as his tool, reverse graffiti was born.
No paint. No defacing. Moose makes his art by cleaning; removing the ills of dirt and pollution by de-defacing- wiping away dirt into large type and shapes, leaving nothing behind but a beautiful work of “green art.”

This is what it is:

This is how it’s done:

• The Projects Website is here: reversegraffiti.com
• via Martin Willms