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PostParis Graffiti (Edward Jajko, USA, 06/02/14 3:19 am)
My increasingly poor eyesight may be a factor, but I can find no Arabic in the three images posted by Randy Black (31 May; see also Carmen Negrín, 1 June).
For true Arab graffiti, simply google "arabic graffiti." Click on "For more images" at the top of the result and you will find a large number of photos of exceptional graffiti that take advantage of the capabilities of the Arabic script and the traditions of calligraphy, writ large. Standard Arabic graffiti of the Elect So and so, Down with So and so, Up with Ahli/other football team, Death to Israel/America/whatever, tend to be crudely spray-painted and without artistic merit.
JE comments: Following Ed Jajko's instructions, I found some "calligraffiti" from the Tunisian artist El Seed (like El/Le Cid). This piece in Frankfurt is very colorful; I would even call it masterful. The title: "You Won't Convince":