Brooklyn, New York, is home to the Brooklyn Public Library, the fifth-largest library system in the United States, with 60 neighborhood branches serving the 2.5 million residents of the borough. The Central Library--the main hub of this far-reaching institution--has, for 75 years, occupied a prime triangle of land at Brooklyn's Grand Army Plaza. Originally proposed in 1888, the unique Art Deco building with an "open book" design was not completed...