During World War II, the Nazis plundered from occupied countries millions of items of incalculable value estimated in the hundreds of millions of dollars. Spearheaded by Hermann Goring, Reichsmarschall of the Third Reich, the looting program quickly created the largest private art collection in the world, exceeding the collections amassed by the Metropolitan in New York, the British Museum in London, the Louvre in Paris and the Tretiakov Gallery in Moscow. By the end of the war, the Nazis had stolen roughly one-fifth of the entire art treasures of the world. This book explores the formation of the Nazi art collection and the methods used by Goring and his party to strip occupied Europe of a large part of its artistic heritage.