Nighthawks is a 1942 painting by Edward Hopper that portrays people sitting in a downtown diner late at night. It is Hopper's most famous work and is one of the most recognizable paintings in American art. Within months of its completion, it was sold to the Art Institute of Chicago for $3,000, and has remained there ever since.
Starting shortly after their marriage in 1924, Edward Hopper and his wife, Josephine (Jo), kept a journal in which he would, using a pencil, make a sketch-drawing of each of his paintings, along with a precise description of certain technical details. Jo Hopper would then add additional information in which the themes of the painting are, to some degree, illuminated.
A review of the page on which "Nighthawks" is entered shows (in Edward Hopper's handwriting) that the intended name of the work was actually "Night Hawks", and that the painting was completed on January 21, 1942.
Jo's handwritten notes about the painting give considerably more detail, including the interesting possibility that the painting's evocative title may have had its origins as a reference to the beak-shaped nose of the man at the bar:
Night + brilliant interior of cheap restaurant. Bright items: cherry wood counter + tops of surrounding stools; light on metal tanks at rear right; brilliant streak of jade green tiles 3/4 cross canvas at base of glass of window curving at corner. Light walls, dull yellow ocre [sic] door into kitchen right. Very good looking blond boy in white (coat, cap) inside counter. Girl in red blouse, brown hair eating sandwich. Man night hawk (beak) in dark suit, steel grey hat, black band, blue shirt (clean) holding cigarette. Other figure dark sinister back at left. Light side walk outside pale greenish. Darkish red brick houses opposite. Sign across top of restaurant, dark Phillies 5c cigar. Picture of cigar. Outside of shop dark, green. Note: bit of bright ceiling inside shop against dark of outside street at edge of stretch of top of window.
The four anonymous and uncommunicative night owls seem as separate and remote from the viewer as they are from one another. (The red-haired woman was actually modeled by the artist's wife, Jo.) Hopper denied that he purposefully infused this or any other of his paintings with symbols of human isolation and urban emptiness, but he acknowledged that in Nighthawks "unconsciously, probably, I was painting the loneliness of a large city."