Born from the lawyer Giuseppe Janni and Teresa Belli, nephew of the great poet Giuseppe Gioachino Belli, whose literary heritage will exert a lot of charm on the artist's personality.

Between 1902 and 1914 he studied at the Liceo Classico and graduated in law. After the war he enrolled in the decoration course held by the liberty artist Giulio Bargellini at the Academy of Fine Arts. After graduation he collaborated with Bargellini and at the same time dedicated himself to deepening his literary and philosophical culture. He made his debut in 1921 at the 1st Roman Biennale.

Around 1924 he was called by his master to decorate the headquarters of the Bank of Italy, where he frescoed the History of Italian currency. Other collab...