Tableau
Tableau is a Salesforce product that is used to create charts, graphs, dashboards and other visual mediums from data while at the same time integrating data sources and streamlining the data visualization process in general. It’s drag and drop format is relatively easier to learn, while at the same time providing a very detailed functionality.
Common Applications
Tableau is used especially by data/business analysts of all kinds. Its relative accessibility means just about every industry will find people who use it, and its ease of integration makes it a common choice for small to medium sized businesses.
Getting a License
Purdue students can get their license here. For non-Purdue students, check your university ("<my university> tableau" should come up with the instructions to get the license) or go to the Tableau for Students page from Tableau.com for other options.