It looks like you're using Internet Explorer 11 or older. This website works best with modern browsers such as the latest versions of Chrome, Firefox, Safari, and Edge. If you continue with this browser, you may see unexpected results.
This workflow is iterative and it is suggested that you go through the cycle multiple times until you are satisfied with the visualization. This workflow is adapated from Visual Insights by Katy Borner, David Polley, and Kelly Schulz.