Mapping Paris: Social and Artistic Networks, 1855–1889 charts and analyzes 19th-century social networks in order to map the artistic collaborations taking place in Paris between the Universal Expositions of 1855 and 1889. In doing so, it allows scholars to view the data in novel ways and to foster considerations of aesthetic dialogue through crossed paths, acquaintances, friendships, conversations and collaborations in the social condenser of Paris. This article focuses on situating the project on its theoretical foundations, considers some of the research questions that can be investigated through such a methodological tool and contemplates the implications on the discipline of art history.