In this art history video discussion Sal Khan and Steven Zucker consider Salvador Dalí's "The Persistence of Memory" 1931, oil on canvas. (The Museum of Modern Art).

This art history video discussion examines Jacques-Louis David's "Oath of the Horatii", oil on canvas, 1784 (Musee du Louvre).

This art history video discussion examines Jacques-Louis David's "The Intervention of the Sabine Women", 1799, Oil on canvas, 12 feet, 8 inches x 17 feet and 3/4 of an inch or 3.85 x 5.22 m (Musee du Louvre, Paris).

This art history video discussion examines Jacques-Louis David's "The Lictors Returning to Brutus the Bodies of His Sons", 1789, oil on canvas (Musee du Louvre, Paris).

This art history video discussion examines Gerard David's "The Virgin and Child with Saints and Donor", c. 1510, oil on oak, 105.80 x 144.40 cm (The National Gallery, London).

This art history video dicussion examines Willem de Kooning's "Woman I", oil on canvas, 1950-52 (MoMA).

This art history video discussion examines Piet Mondrian's "Composition No. II, with Red and Blue", oil on canvas, 1929 (original date partly obliterated; mistakenly repainted 1925 by Mondrian). Oil on canvas, 15 7/8 x 12 5/8" (40.3 x 32.1 cm) (The Museum of Modern Art).

This art history video discussion examines Edgar Degas' "The Bellelli Family", 1858-67, oil on canvas (Musee d'Orsay, Paris). Degas was in his mid-twenties when he painted this canvas. It depicts from left to right, the ten-year-old Giovanna, her mother, the artist's paternal aunt Laura, her younger daughter, Giula age 7, and the Baron Gennaro Bellelli. Preperatory sketches for the painting may have been made in Florence where the family was living, the Baron had been exiled from Naples. The picture may have been completed in Paris.

This art history video discussion examines Edgar Degas' "The Dance Class" oil on canvas, 1874 (Metropolitan Museum of Art).

This art history video discussion examines Edgar Degas' "At the Races in the Countryside", 1869, oil on canvas, 36.5 x 55.9 cm / 14-3/8 x 22 inches (Museum of Fine Arts, Boston).

This art history video discussion examines Edgar Degas', "Visit to a Museum", c. 1879--90, oil on canvas, 91.8 x 68 cm / 36-1/8 x 26-3/4 inches (Museum of Fine Arts, Boston).

This art history video discussion examines Eugene Delacroix's "Scene of the Massacre at Chios": Greek families awaiting death or slavery, 1824 Salon, oil on canvas, 164" x 139" (419 cm x 354 cm) (Musee du Louvre, Paris) .

This art history video discussion examines Eugene Delacroix's "The Death of Sardanapalus", 1827, oil on canvas (Musee du Louvre, Paris).

This art history video discussion looks at Donald Judd's "Untitled", 1969, ten copper units, each 9 x 40 x 31 inches with 9 inch intervals (Guggenheim Museum, New York).

This art history video discussion examines Donatello's "St. Mark", 1411-13, marble, 93" (236 cm), Orsanmichele, Florence.

This art history video discussion examines Donatello's "David", bronze, late 1420s to the 1460s, likey the 1440s (Museo Nazionale del Bargello, Florence).

In this Smarthistory video Dr. Beth Harris and Dr. Steven Zucker discuss Donatello's "Equestrian Monument of Gattamelata" (Erasmo da Narni), 1445-53, bronze, in the Piazza del Santo, at Padua.

This art history video discussion examines Donatello's "Feast of Herod", panel on the baptismal font of Siena Cathedral, Siena, Italy, Gilded bronze,1423--1427.

This art history video discussion examines Donatello's "Madonna of the Clouds", c. 1425--35, marble, 33.1 x 32 cm / 13 1/16 x 12 5/8 inches (Museum of Fine Arts, Boston).

This art history video discussion examines Duccio's "The Rucellai Madonna", 1285-86, tempera on panel, 177 x 114" or 450 x 290 cm (Uffizi, Florence).