Composition with Yellow, Blue, and Red; Piet Mondrian: The black lines are the flattest elements, with the least amount of depth. The colored forms have the most obvious brush strokes, all running in one direction. Most interesting, however, are the white forms, which clearly have been painted in layers, using brush strokes running in different directions.

Campbell's Soup Cans; Andy Warhol: The individual paintings were produced with a semi-mechanized silkscreen process, using a non-painterly style. Campbell's Soup Cans' reliance on themes from popular culture helped to usher in pop art as a major art movement in the USA.

Mural with Blue Brushstroke; Roy Lichtenstein: The Mural with Blue Brushstroke dominates the atrium lobby of The Equitable Tower at 787 Seventh Ave. in New York City. It's 8 feet 3/4 inches x 32 feet 5 1/4 inches.

Christina's World; Andrew Wyeth: The woman crawling through the tawny grass was the artist's neighbor in Maine, who, crippled by polio, "was limited physically but by no means spiritually." Wyeth further explained, "The challenge to me was to do justice to her extraordinary conquest of a life which most people would consider hopeless."

Marilyn (Vanitas) 1977; Audrey Flack: Marilyn is perhpas Flack's most famous photorealism painting. To Flack, Marilyn Monroe represented a deep pain and a deep beauty. She affected both men and women equally, and that is why Flack considers this painting androgynous.

The Figure 5 in Gold; Charles Demuth: The Figure 5 in Gold is one of a series of eight abstract portraits of friends that Demuth made between 1924 and 1929, which were exhibited at Alfred Stieglitz's gallery 291. This particular painting pays homage to a poem by William Carlos Williams

Nighthawks; Edward Hopper: "Nighthawks" may be Hopper's take on the term night owl used to describe someone who stays up late. The scene was inspired by a diner (since demolished) in Greenwich Village, Hopper's home neighborhood in Manhattan.

New York, New Haven and Hartford - 1931; Edward Hopper; Edward Hopper was an American artist who lived in New Your City, but spent the summers and all the other time he could along the New England seacoast in Cape Cod and Maine. Hopper loved to paint New England scenes of boats and the ocean and "lonely" old houses.

Preparing for the Matinee; Edmund Charles Tarbell: This painting is called "Preparing for the Matinee," by the American artist Edmund Charles Tarbell. Our young woman is getting all dressed up to go out to a show...a matinee, which means some sort of a performance that happens in the daytime. Since this picture was painted in 1907, she's probably going to go to a play or a band concert.

Girl at the Piano: Recording Sound - 1935; Theodore Roszak: Even though this picture looks abstract, you can recognize everything. The girl with her long hair and fluffy bangs is concentrating on her music. She's resting her chin on one hand and picking out notes with the other.