Piera is a municipality that covers a large portion of the southeastern corner of the comarca of Anoia in Catalonia, Spain, on the left bank of the Anoia river. The agricultural land, mostly non-irrigated, is used for the cultivation of cereals, grapes, olives and almonds. The town itself hosts a number of light industries: textiles, plastics and construction materials. Tourism during the summer months is also relatively important for the local economy.