Joan Brown's 1970 Self-Portrait with Fish and Cat is the first image you see at the National Portrait Gallery's "Face Value" exhibit. Estate of Joan Brown/Courtesy of George Adams Gallery/National Portrait Gallery hide caption

itoggle caption Estate of Joan Brown/Courtesy of George Adams Gallery/National Portrait Gallery

In a letter, Mary Cassatt describes working on Little Girl in a Blue Armchair (1878) with Edward Degas. An X-ray of the painting reveals brush strokes unlike Cassatt's regular strokes. National Gallery of Art hide caption

itoggle caption National Gallery of Art

Two pensive women share a mysterious, intense moment in Raphael Soyer's 1980 Annunciation. Smithsonian American Art Museum hide caption

itoggle caption Smithsonian American Art Museum

Trumpeter Geraldo Marshall and trombonist Johannes Utas, students at the Duke Ellington School of the Arts, rehearse for their school's 40th anniversary celebration. Lauren Migaki/NPR hide caption

itoggle caption Lauren Migaki/NPR

Contralto Marian Anderson sang at the steps of the Lincoln Memorial, April 9, 1939, to an estimated crowd of 75,000 people. University of Pennsylvania hide caption

itoggle caption University of Pennsylvania

Photographer JeongMee Yoon felt her daughter's life was being overtaken by pink. She illustrated that in her 2006 portrait Seo Woo and Her Pink Things. JeongMee Yoon/Museum of Fine Arts, Boston and Jenkins Johnson Gallery hide caption

itoggle caption JeongMee Yoon/Museum of Fine Arts, Boston and Jenkins Johnson Gallery

James Baldwin, shown here in 1964, was the first in a series of authors Harry and Lynne Sharon Schwartz recorded. Jenkins/Getty Images hide caption

itoggle caption Jenkins/Getty Images

On location for Walk of Shame, camera crew members Larry Nielsen (center) and Milan "Miki" Janicin (right) help set up a crane shot. The wireless focus remote Nielsen will use is hanging from that purple carabiner on his jacket. Cindy Carpien/NPR hide caption

itoggle caption Cindy Carpien/NPR

Milan "Miki" Janicin slates a scene on a location shoot for The Fast and the Furious: Tokyo Drift. Given the crowded location, "I'm actually on the phone with my first assistant, so he could let me know when the camera is rolling," Janicin says. Sidney Ray Baldwin hide caption

itoggle caption Sidney Ray Baldwin

Fon appliqué workers in 1971, Abomey, Republic of Benin. Eliot Elisofon/National Museum of African Art hide caption

itoggle caption Eliot Elisofon/National Museum of African Art

Untitled (Kate #18) by Chuck Close. Chuck Close/Courtesy of Pace/MacGill Gallery, New York hide caption

itoggle caption Chuck Close/Courtesy of Pace/MacGill Gallery, New York