Canzoniere, kan zoh NYEHR ay, is the greatest work of the Italian poet Petrarch (1304-1374). Of the more than 400 poems that Petrarch wrote in Italian, 366 form the Canzoniere (Book of Songs). Petrarch wrote the poems over a period of about 20 years. Most were first published in 1360. They include more than 300 sonnets, as well as short lyrics and one long poem.