A Learning Track (formerly Campaign) is a way to distribute and publish sets of content to your Team Members.  It’s essentially a collection of content that will appear on your users Assignment list.  You can choose to distribute the content all at once, or, over time, using the tools provided in the Learning Track builder.  You can also determine in what order the courses will appear on the Team Member’s home page.  In some cases, your instance of ExpandShare may be pre-populated with a set of Learning Tracks.  You can also create your own!