Compare Constellations
Information: The first column shows data points from Duke University. David M. Rubenstein Rare Book & Manuscript Library John W. Hartman Center for Sales, Advertising & Marketing History in red. The third column shows data points from John W. Hartman Center for Sales, Advertising & Marketing History, Duke University. David M. Rubenstein Rare Book & Manuscript Library in blue. Any data they share in common is displayed as purple boxes in the middle "Shared" column.
