"mysterious, hooded men"
by cm
Creative Commons Attribution Share AlikeBedouin - Credit: Ferdinand Reus, Flickr

The term Bedouin is a generic name for desert-dwelling Arabs.  It does not refer to a particular ethnic group.  As nomads, the Bedouin once roamed across North Africa and the Middle East, but very few Arabs maintain this life. 

The Bedouin are the subject of T.E. Lawrence's book Seven Pillars of Wisdom, as well as the film Lawrence of Arabia.