Tableau is ideal for generating data visualizations. These are some videos I made for a class I teach in visual analytics; most of the material and data sets are taken from Tableau 10 Essentials (book) and Tableau video tutorials.
Tableau Module 1
https://youtu.be/hmsdpq7HnNE
Tableau Module 2
https://youtu.be/3nRstWiyQiY
Tableau Module 3
https://youtu.be/BrhhfP1DycY
Tableau Module 4
https://youtu.be/dq96UoRtY3Y