This handbook investigates the historical significance and architectural evolution of the Vanderbilt Mansion in Hyde Park, New York, as a representative example of the Gilded Age. Charles W. Snell, a historian with the National Park Service, utilizes primary archival records and site-specific architectural surveys to document the construction and ownership history of the estate. The text provides a structured overview of the mansion's role within the broader context of American social history and the Vanderbilt family legacy.

Historians and preservationists regard this handbook as a reliable, foundational resource for understanding the specific site history of the Vanderbilt Mansion. Readers frequently note the technical precision of the architectural descriptions and the clarity of the historical timeline provided by the National Park Service.