This book gives an overview and insight into the unique collection of the Norwegian art collector Erling Neby. Erling Neby is an owner of one of the most important and precious private collections of constructivist and concrete art in Europe, and even worldwide. But he's also a Hi-Fi connoisseur and successful businessman.Neby's collection provides a personal view of concrete and geometric constructivist art as seen by the collector. Over a period of thirty years, Neby has been building up his collection in Oslo, a collection which is today unequalled in the Nordic countries and is world-renowned. Among the artists included in the collection are: Josef Albers, Olle Baertling, Jean Dewasne, Emilio Gilioli, Jan Groth, Arne Malmedal, Aurelie Nemours, Lars G. Nordström, Paul Osipow, Jesus Rafael Soto, Victor Vasarely, and Thornton Willis.