In 1906, Modigliani settled in Paris, where he encountered the works of Henri de Toulouse-Lautrec, Georges Rouault, and Pablo Picasso (in his "blue period") and assimilated their influence, as in The Jewess (1908; private collection, Paris). The strong influence of Paul Cezanne's paintings is clearly evident, both in Modigliani's deliberate distortion of the figure and the free use of large, flat areas of color.

His friendship with Constantin Brancusi kindled Modigliani's interest in sculpture, in which he would continue his very personal idiom, distinguished by strong linear rhythms, simple elongated forms, and verticality. Head (1912; Guggenheim Museum, New York City) and Caryatid (1914; Museum of Modern Art, New York City) exemplify his sculptural work, which consists mainly of heads and, less often, of full figures.

After 1915, Modigliani devoted himself entirely to painting, producing some of his best work. His interest in African masks and sculpture remains evident, especially in the treatment of the sitters' faces: flat and masklike, with almond eyes, twisted noses, pursed mouths, and elongated necks. Despite their extreme economy of composition and neutral backgrounds, the portraits convey a sharp sense of the sitter's personality, as in Moise Kisling (1915; private collection, Milan). A fine example of Modigliani's figure paintings is a reclining Nude (1917; Guggenheim Museum), an elegant, arresting arrangement of curved lines and planes as well as a striking idealization of feminine sexuality.