National Portrait Gallery (Smithsonian Institution)

"The nation's only complete collection of presidential portraits outside of the White House"--

"Before the advent of photography in 1839, Americans were consumed by the fashion for silhouette portraits. Economical in every sense, the small, stark profiles cost far less than oil paintings and could be made in minutes. Black Out, the first major publication to focus on the development of silhouettes, gathers leading experts to shed light on the surprisingly complex historical, political, and social underpinnings of this ostensibly simple art...