The Hess Art Collection is one of the world's most distinguished private collections of contemporary art. It was assembled by the Swiss businessman and wine producer Donald M. Hess. The collection unites extraordinary works by numerous artists now known around the world as well as excellent pieces by artists whose names are (as yet) less well known. This mixture is part of the ensemble's particular charm, making a glance through this copiously illustrated catalogue a veritable expedition. Hess's collecting activities primarily focus on the individual work. Accompanied by an unmistakable sense of quality, he judiciously selected the works he acquired over a period of more than forty years. A large part of the collection's holdings is open to the public in the museums of the Hess wineries in Napa, California, Glen Carlou in Paarl, South Africa, and Bodega Colomé in Calchaquí Valley, Argentina. A fourth museum is being planned at the Peter Lehmann Winery in Barossa Valley, Australia.