Before we Start: The user must have the proper permission in order to create a Document Library. Best practice is to limit this task to the Site Owner even though other uses may be able to.
Step 1: Navigate to the Team Site you want to create a new document library
Step 2: Click the Menu bar and select Document Library.
Step 3: Enter in the Name and select if you want the Library to appear on the SharePoint site navigation. Click Create.
The library is ready to have files and folders added.