ABSTRACT
How did the most original artists around 1420 - like Brunelleschi, Donatello and Masaccio - present their innovations to the patron? The early fifteenth century is most revealing, for too little is known of the age of Giotto, and by 1500 so many novelties had been introduced that their acceptance is hardly a problem to be explained. Broadly speaking, there were three different sorts of innovation in this period: changes in technique (as in the use and preparation of materials), in style and in subject-matter.
