VMware Skyline is more than just a single tool. There are 3 different tools under the Skyline name. Each of them has a distinct purpose and use case.  I have put together a few  videos that might help you learn more!

I recommend you start with the Skyline Overview

There are demos of each of the Skyline Toos

• Skyline Health for vSphere
• Skyline Advisor
• Skyline Health Diagnostics
  

I hope you find these useful!  If there are other topics you are interested in – let me know in the comments…