It includes toolbar, menus, Data window, cards that hold shelves and legends and sheets. Sheets can be dashboards or worksheets.
Worksheets hold shelves which are where you drag data fields to build views. You can alter the default layout of the shelves and cards to suit your requirements including resizing, moving and hiding them.
Dashboards hold views, legends and quick filters. When you first make a dashboard the Dashboard is empty and all of the worksheets in the workbook are displayed in the Dashboard window.
Data field appears on the left side of the workspace in the data window.
You can hide and show the Data window by selecting window > Show Data Window.
You can also click the minimize button in the upper right corner of the Data window.