# Resource hierarchies

Resources are stored and displayed in the Workbench in hierarchies. Described below are the terms used when referring to resources that are stored and displayed in a hierarchical structure.

Root
  The top level of the Workbench contents (in the file system).
Parent resource
  Any resource that contains another resource. Only projects and folders can be parent resources.
Child resource
  Any resource that is contained within another resource. Only files and folders can be child resources.

Resource hierarchies are displayed in the Project Explorer view, which is one of the default views in the Resource perspective.

Resources
Project Explorer view

Finding a resource quickly
Showing or hiding files in the Project Explorer view