Abandoned buildings can be transformed by a few sprays of paint.  The makeshift canvas, tagged by its author reveals a beautiful mural to the world…..until it is painted over and a mundane white wall restored; awaiting the process to begin again. Such is the transient nature of graffiti. But it doesn’t have to be so.  “Banksy came from the streets and now … More The nature of street art: spontaneous, public and mostly fleeting.