What are the available views?

The different views in PowerBI are:
 
Report View : It is the default view which shows the visualization of the data in reports. You can create multiple report pages here with a wide range of templates and visualizations.
Data View : Data view shows the transformed data in a table format with columns and rows. It also allows you to create new calculated columns for further insights.
Model View : Also called, Relationship View, helps to create relationships between data models. All the models created in the data can be seen in this view and accordingly you can compare or create diagrams based on subsets of the model.