Useful way of comparing Rank over time when comparing Dimension members, using a dual-axis line / circle chart.
A quick Tech Analytics video gives a reasonable overview of this chart type:
An On Demand session on Tableau.com is also available:
Andy Cotgreave gives good advice on where the use of this chart type works – and where it doesn’t:
Matt Chambers‘ excellent post guides you through the process of creating bump charts in Tableau:
Matt’s blog post linked above is perfect, and the same can be said of the associated Viz:
Michael Mixon did a good job of showing the effectiveness of this chart type when using small dimensions: