Once you have started the Workbench you will see a single window. The Workbench window displays one or more perspectives. Initially one perspective, the Resource perspective, is displayed. A perspective contains views, like the Navigator, and editors. More than one Workbench window can be open at any given time.
At the far left of the window is a shortcut bar that allows you to open new perspectives and move between perspectives that are already open. The name of the active perspective is shown in the title of the window and its icon in the shortcut bar is a pushed-in icon.
Looking at the title bar of the Workbench window we can see that we are working with the Resource perspective. The Navigator, Tasks, and Outline views are open, along with an editor on the welcome page. You might want to take a moment to peruse the welcome page. It provides a quick starting point if you are eager to customize your Workbench or learn about other installed features.
Editors and views
Basic Tutorial