Barbera is the hardy staple grape of the famous Piedmont region in Northern Italy. The grape accounts for around 55% of the wine produced in that region.
A tough, non-fussy grape, Barbera has been known to be flexible in its acclimation to different regions. It's typically a deep ruby color with low tannin and bracing, high acidity.
Barbera is the wine of the working people in the region that it grows. It's less "respected" than Nebbiolo, and is therefore shunted into slightly less-desirable locations, though it has legions of dedicated patrons.
Unlike many of the other red grapes in the Piedmont, Barbera has a relatively long hang time on the vine and that imparts a lot of rich, dense flavors to the wine.
Barbera d'Asti is the most famous DOCG (Denominazione di Origine Controllata e Garantita) in which the grape grows. This is a warm, hilly region in the Piedmont.