Analysis and Visualization of Social Networks. We describe Visone, a tool that facilitates the visual exploration of social networks. Social network analysis is a methodological approach in the social sciences using graph-theoretic concepts to describe, understand and explain social structure. The Visone software is an attempt to integrate analysis and visualization of social networks and is intended to be used in research and teaching. While we are primarily focusing on users in the social sciences, several features provided in the tool will be useful in other fields as well.