The heuristics course of Block 2 is intended to train students in the methodological bases of research in Art History and Archaeology. In the field of art analysis, the exercise carried out within the framework of this course should enable students to characterise a work of art from the Middle Ages or Modern Times, to situate it in its context and to constitute a catalogue of comparable works. This course also provides the student with the basics of research in architectural history. The course is designed to enable students to deepen their experience of documentary research by learning to master new research tools and new types of sources (written archives, ancient iconography, etc.). It should also provide the methodological basis for the observation and recording of architecture in situ. Finally, it must offer the rudiments of formal analysis of architecture.