The back of the postcard reads:
Piero Fornasetti (1913-1988)
Beppe Nappa, Maschere Italiane
Piero Fornasetti was an Italian painter, sculptor, interior decorator and engraver. He created more than 11,000 items, many featuring the face of a woman, operatic soprano Lina Cavalieri, as a motif. His style is reminiscent of Greek and Roman architecture, from which he was heavily influenced.
There was no information regarding Beppe Nappe, but I was able to find description on "Peppe Nappa." I don't actually know if they are one and the same. Peppe Nappa was born in Sicily in the 16th or 17th century. The name “Peppi”, in Sicilian dialect, comes from Giuseppe, while “nappa” denotes the darn in his socks. So the name in full means “John darn in his socks” or, in other words, a good for nothing. His light blue blouse and trousers are soft and wavy like the colour of the Mediterranean sea surrounding Sicily.
Piero Fornasetti Wikipedia Entry