Collecting art books: the library of Leopoldo Cicognara and his bibliographic system.

The article takes a look into the library of book collector Leopoldo Cicognara and his bibliographic system. It describes the organization system of the collection contained in the Catalogo ragionato dei libri d'arte e d' antichitá posseduti dal conte Cicognara, which consists of Art and Antiquities principal sections divided into thematic categories. It provides an overview of traces of universal systems and hierarchical system found in the structure of Cicognara's catalogue.