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 had studied in Kraków, selected Johann Haller, who along 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 taught at the Kraków Academy while Copernicus was a student there, and they were well acquainted.