En plein air, or plein-air painting, is the act of painting outdoors.

The Barbizon school of painters were part of an art movement toward Realism in art, which arose in the context of the dominant Romantic Movement of the time. The Barbizon school was active roughly from 1830 through 1870. It takes its name from the village of Barbizon, France, on the edge of the Forest of Fontainebleau, where many of the artists gathered. Most of their works were landscape painting, but several of them also painted landscapes with farmworkers, and genre scenes of village life. Some of the most prominent features of this school are its tonal qualities, color, loose brushwork, and softness of form.