Mapping the social affinities of a group of individuals, Moreno’s first sociograms visualize the relationships between pupils in a classroom: who wants to be sitting next to whom? Each child can choose two others, for results that suggest that sociabilities are changing over time: the proportion of attractions between boys and girls decrease, community structures are formed and then disappear, etc. * Source: Grandjean, Martin (2015) "Social network analysis and visualization: Moreno’s Sociograms revisited". * Caption: Redesigned network strictly based on Moreno (1934), "Who Shall Survive". Size and color of the nodes indicating the number of incoming connections ("in-degree" dark blue=0; white=3 and more).