To blend data from two sources in Looker Studio, we’ll need to add both sources to our project. If you haven’t already added the sources, let’s learn how to do that step-by-step.

For example, this chart from a study on data sources used for COVID data visualisation shows hundreds of categories in one pie. A pie chart with dozens of categories.

Templates and wizards are included with the product that take data from existing sources, such as an Excel spreadsheet, and populate Visio charts. As data is changed, the chart is updated. The ...