The Tableau Software website provides many quality training videos.  These videos may be accessed at http://www.tableau.com/learn/training. 

For additional information on How To Tableau videos, select the following URL:

https://www.youtube.com/results?search_query=tableau+how+to

You can also click on LinkedIn training by following this link: https://go.illinois.edu/linkedinlearning  Click "Sign In" button, and select option Sign in with your organization account