In January 1942, thousands of New Yorkers gathered on the steps of the legendary New York Public Library, at 5th Avenue and 42nd Street, wearing their Sunday best and warmest coats. When standing room became scarce, crowds formed across the street. Nearly everyone had at least one book in hand. These were not overdue, nor did they need to be returned to the library; instead they were “Victory Books,” bound for soldiers overseas.

It may be difficult to appreciate the …