1. Introduction to SharePoint
Office 365

2. What is SharePoint?
Microsoft SharePoint is a browser-based collaboration and document management platform from Microsoft. Microsoft's content management system allows groups to set up a centralized, password protected space for document sharing.

3. SharePoint Team Sites
A SharePoint site is a Web site that provides a central storage and collaboration space for documents, information, and ideas.
A SharePoint site is also a tool for collaboration, just like a telephone is a tool for communication, or a meeting is a tool for decision making.

4. List & Libraries
Although in most of the UI and API they can be manipulated the same way, there are some significant differences between Lists and Libraries. The latter is a specialized type of the former.
Lists:
Can have attachments
Have major versions only
Do not have Check-in/Check-out features
Libraries:
Cannot have attachments (files are directly in the library)
Have both minor (draft) and major (published) versioning
Have Check-in/Check-Out
Publishing Libraries can use Page Layouts
Have Unique Document Ids out of the box

5. Coauthoring & Version Control
Document collaboration and co-authoring is a critical element to working effectively as a team in your enterprise. The combination of SharePoint and Office offers a spectrum of document collaboration methods, whether it is co-authoring a spreadsheet or routing a business plan through a workflow.
Version control is a critical feature for any enterprise-scale document collaboration platform. In SharePoint, the versioning feature automatically saves every version of a document. This allows multiple people to make changes to a document without the fear of overwriting a previous version.