This project aims to reassess the influence of a particular form of vernacular Aristotelianism upon the formation of Galileo’s method, focusing on a heterogeneous collection of materials written in question and answer format commonly designated under the title of “Problems.” While the scholars who have approached Aristotle’s problems have said comparatively little on the ‘democratization’ of such tradition, I look at it from a fresh angle, that of the interrelation between practices of reading (and collecting) and other expert practices.