This document provides an overview of data types in Tableau including string, number, date, date and time, boolean, and geographic values. It describes how to connect to data in Tableau by selecting a file or server data source. It also discusses changing the data type of fields from the data pane or in a view and explains that dimensions contain qualitative values that affect detail level while measures contain quantitative values that can be aggregated. Finally, it lists some portals for finding open data sets.