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, chose Johann Haller, who along with Kasper Hochfeld had published Jan Łaski's Statutes (1506) and works by Laurentius Corvinus (1508), a professor at the Kraków Academy during Copernicus' studies.