Tableau is software that can help you see and understand your data. It is used for data science and data visualization. Tableau allows you to connect to almost any database, drag and drop to create visualizations, and share with a click.
In this crash course from Velocity Consulting, you will learn to use Tableau to produce high quality, interactive data visualizations.
You can watch the tutorial on the freeCodeCamp.org YouTube channel (29 minute watch).