Hitler's Art Thief: Hildebrand Gurlitt, the Nazis, and the Looting of Europe's Treasures
by Susan Ronald
"When German authorities investigating a peculiar tax-evasion case raided the small, Munich apartment of 80-year-old recluse Cornelius Gurlitt in 2012, they seized 1,280 works of art. The uncovered treasure trove eventually revealed canvases by Picasso, Chagall and Matisse. Valued at more than $1.35 billion, the apparent Nazi heist made headlines worldwide."