Abstract
Restoration and its projects are nourished by various modes of historical research. Architectural history provides the indispensable knowledge of the aesthetic object. The material history of the built environment, moreover, provokes attitudes and methods of intervention on the built object, with its material complexity and the stratifications accumulated over the course of its existence. In turn, the restoration project and its worksite open up an equally significant field of research - both theoretical and technical. This knowledge in action informs key notions of restoration, such as authenticity, and specifies the most appropriate operating strategies.
