How to create a SharePoint document library
You want to create a location to store documents, pictures, forms, wiki pages, assets, reports, or records
Step 1. Click on settings gear on top right
Step 2. Select 'Add an app'
Step 3. Find and select 'Document Library'
Step 4. Choose one of the following:(a) Provide a name and click 'Create'(b) Click 'Advanced Options' and provide
Name - Type a new name as you want it to appear in headings and links throughout the site. Type descriptive text that will help site visitors use this document library.
Description - Provide details regarding this library for users
Incoming Email - Specify whether to allow items to be added to this document library through e-mail. Users can send e-mail messages directly to the document library by using the e-mail address you specify.
Document Version History - Specify whether a version is created each time you edit a file in this document library.
Document Template - Select a document template to determine the default for all new files created in this document library.