The earliest extant texts by Barzoni date from this period, including a 300 folio long codex, mainly consisting of the emended Tractatus by Petrus Hispanus; and some poems and other minor works.
He also started working as a private teacher of rhetoric, having students from countries and regions like Hungary, Croatia and Bohemia.
[1] Garzoni wrote 36 lives of saints (or vitae), including those of Agatha, Blasius, Catherina Alex., Cecilia, Christina, Cosmas and Damian, Eustachius, Felix and Felix, George, Gervasius and Protasius, Hippolytus, the apostle Johannes, Laurentius, Lucia, Margarita, some Mauritanian martyrs, Nereus and Achilleus, Primus and Felicianus, Proculus, Sebastian, Vitus and Hippolytus, Simon of Trent, the martyr Peter, Petronius, Theodorus, Symphorianus, and Christopher.
Other works that survive include histories (mainly Bolognese history), dialogues, treatises, medical texts, and a large number of funerary and other orations, on a wide range of subjects, from religion to military matters, including a pornographic story, Heliogalbalus.
Many of these are unpublished manuscripts, some published works include: The De miseria humana by Jean Gerson is sometimes mistakenly attributed to Garzoni.