In contrast to the style of his teacher, Martino Spanzotti, who had a great influence on the development of his work, the manner of Ferrari's inherent commitment to the Gothic tradition, which in the end led him to mannerism. His small painting "Adoration of the Christ child" (1510, Turin, Mountains. Museum) reveals the artist's desire to simple stories, pathos and grafizm close of woodcuts. Such works as "the Adoration of the infant Christ with the saints" (1511) from the TS. San Giovanni in Avigliana, remarkable altarpieces of the Cathedral of Ivrea ("Adoration of the Christ child, with St. Clara", 1519; "Adoration of the Christ child, with Saint and Prelate", 1521) demonstrate the evolution of the Ferrari, which reached its climax in 1535 in the triptych from C. San Giovanni in Avigliana ("Madonna with child and saints"). Here was finally developed his style and iconography. He uses lighting effects in his palette is dominated by red tones, but the landscapes are reminiscent of the landscapes of Northern artists ("St. Jerome", 1520, Turin, Mountains. Museum; triptych "adoration of the Magi", Stresa, Institute Rosmini, 1523; the great altar, Turin, Gal. Sabauda). Characteristic features of the style Ferrari is even more apparent in predelah and narrative panels, stored in Turin (Mountains. Museum and Gal. Sabauda), in the Cathedral in Cuneo ("scenes from the life of St. Anthony the Abbot") and the monastery of San Girolamo in Biella (1523).
Numerous works Ferrari presents in Piedmont: Turin (Gal. Sabauda; The Mountains. Museum; the Albertina Academy; the Cathedral) and the churches and museums in and around Turin (Avigliana; Buttigliera Viola; Carmagnola; Caselle Torinese; Cirie; Feletto Canavese), in Ivrea (C. Sagra di San Michele), Susa and Vercelli (Museum Borgoña). Outside of Italy they are kept in the Museum of Bourg-EN-Bresse ("the Nativity of John the Baptist"; "the descent from the cross"), Art Museum Fogg in Cambridge, Massachusetts ("the Adoration of the Christ child"), in the State. Museum in Amsterdam ("Madonna and child with St. Anne", 1528), in the Museum of Denver ("Christ with Martha and Mary"), at the Metropolitan Museum in new York (the"Two saints"), in NAT. Gal. in London ("Holy") and the State. Gal. in Stuttgart ("Christ and the scribes", 1526). For a long time works Ferrari was identified with the work of Spanzotti, but in our days the problem of attribution is much easier, due to the fact that researchers (Viale, Gabrielli, f and Bertini) was able to distinguish bright and Gothic style Ferrari style, Spanzotti associated with the Lombard Renaissance. Ferrari has had several disciples and imitators, in particular, Girolamo Giovenone; in addition, he has had a significant impact on the development of Piedmontese painting of the XVI century.