Geometria e architettura militare

The essay highlights the growing diffusion of treaties relating to the military architecture in Sicily since the second half of the sixteenth century. The research carried out by analyzing the inventories of wills of the Sicilian architects of the seventeenth and eighteenth centuries, the library catalog '"Biscari "and the inventories related to the libraries of some religious orders, revealed an unusually large presence of international treaties related to the mathematical sciences and its applications in the field of architecture both civic and military (geometry, perspective, optics). The research has allowed to reconstruct in part the library of some prestigious architects such as Paolo Amato and Tomaso Maria Napoli, providing precise informations on the cultural interests of professionals between the seventeenth and eighteenth centuries.