In case you want to have a look at the calligraphic aspects of
graffiti/writing then "Dare"(=Sigi von Koeding from Switzerland) is one
of the artists to look at.
His small booklet about his pieces on canvas and his postcards are a
real "eye.-opener"
the impact of these modern artists onto all forms of arts can`t be
denied any more.
IF a real "global art" exists in 21.century then itīs the
collaborative works of writers
sharing their experiences and mutually influencing and educating all of
us
his URL?
http://www.vonkoeding.ch A.Thiel(coordination),intl.work-group on graffiti-research
http://www.graffitiforschung.tk