The first comprehensive work on white gold. Since humans began to walk the Earth, they have sought after the precious mineral, a remnant of evaporated primordial seas; its possession represented not only survival for millennia but also power and wealth. It established trade routes and dynasties and was the cause of wars. The development of salt extraction techniques was a prerequisite for the civilization of the world. People on all continents devised clever, often surprisingly simple, but also complex methods. The mass production of salt since the industrial revolution and its constant availability have made us forget the glorious history of traditional salt production. Stopping this decline is the goal of Mikel Landa and Luke Duggleby. The Basque architect and the British photographer traveled for three years to remote regions.