Working Girl meets What Remains in this New York Times bestselling, behind-the-scenes story of an unlikely friendship between America's favorite First Son, John F. Kennedy Jr. and his personal assistant, a blue-collar girl from the Bronx. Featured in the documentary I Am JFK Jr.

From the moment RoseMarie Terenzio unleashed her Italian temper on the entitled nuisance commandeering her office in a downtown New York PR firm, an unlikely friendship bloomed between the blue-collar girl from the Bronx and John F. Kennedy Jr.

Many books have sought to capture...