Projects are sorted into individual tabs based on the "status" of the project.
Active projects are listed under the first tab on the Project page. Completed and all other statuses are listed under their applicable tabs.
Of specific note are Templates. You may create projects with a "Template" status and then import their plans to your new projects. This is a simple way to managed similar recurring projects or standardising your project plan for a specific type of project.
The Skills & Availability tab makes it possible to lookup resources in the HR module for projects based on specific Skills or functional expertise.