I find the best way to learn how to use Tableau is to find some real data you’re interested In, bring it in to Tableau and do something interesting with it.  In this video series I’ll show you how I found some data and the steps I went through to shape my data so it would be easier to work with in Tableau.
 
In this first video we find an interesting data set on the Guardian DataBlog (http://www.guardian.co.uk/news/datablog) and reshape that data with the Tableau reshaping tool (http://kb.tableausoftware.com/articles/knowledgebase/addin-reshaping-data-excel).

Go to: Preparing Data for Tableau: 2 of 3 (video tutorial)

Go to: Preparing Data for Tableau: 3 of 3 (video tutorial)