Edward Hopper was among the painters who made the biggest contribution to the establishment of realism in America. However, it should be stressed that it was a realism that bore his own, personal stamp. Although Hopper aimed to achieve great objectivity, the emotive quality and powerful simplicity of his images also convey a critical attitude. Lloyd Goodrich summed up the stance of the painter as follows: "instead of subjectivity, a new kind of objectivity; instead of abstraction, a purely representational art; instead of international influences, an art based on American life".
After working as a magazine illustrator for several years and travelling to Paris on various occasions, by the time he painted Girl at a Sewing Machine in 1921, Hopper had fully consolidated his style. In the centre of an urban domestic interior, a young woman with long hair that practically conceals her face is absorbed in working on a sewing machine by a window. The composition recalls similar indoor settings painted by seventeenth-century artists of the Dutch school.
As in most of Hopper's indoor scenes, light is the salient feature of the painting. In this case the action takes place on a clear, sunny day and the rays powerfully penetrate the
interior, projecting a reflection on the flesh coloured far wall, which helps create a geometrical effect that is heightened by the quadrangular shapes of the window frame. The
light also causes the figure of the young woman in white to glisten in the dark interior. What might otherwise be a simple everyday scene is thus given a new dimension, and the
solitary woman engrossed in her work becomes an embodiment of the alienation of the human being.