Copernicus, who had studied in Kraków, opted for Johann Haller, who together with Kasper Hochfeld had already published the first illustrated work in Poland, Jan Łaski's Statutes (1506), and one of 25 works by Laurentius Corvinus (1508). Corvinus had lectured at the Kraków Academy while Copernicus studied there, and they were well acquainted.
Copernicus, who was a student in Kraków, chose Johann Haller, who had collaborated with Kasper Hochfeld on Jan Łaski's Statutes (1506) and one of Laurentius Corvinus' works (1508), and who taught at the Kraków Academy while Copernicus studied there.