One of the oldest port houses, Quinta do Noval is also arguably the greatest. It is unique among the top houses in that most of the ports are made from estate-grown fruit and, notably, all of the vintage Noval wines are from the single Quinta do Noval vineyard. As Robert Parker writes in his 2005 book, The World's Greatest Wine Estates: "Quinta do Noval is unusual among the great traditional Port houses in that it emphasizes the importance of the vineyard. The aim is to produce classic Vintage Ports that are harmonious and elegant expressions of Quinta do Noval's terroir. Strict selection in the vineyard, low yields, and strict selection again in the tasting room result in a small production.”