You can find Table Of Content of all important posts about using Power Shell with Microsoft Dynamics NAV (from MSDN Blog):
https://totovic.com/2015/03/09/powershell-nav-on-msdn-blog/
You can find posts about Power Shell and NAV, below from some other MVP authors, as well:
Waldo’s Blog Power Shell articles
Soren’s Blog Power Shell articles
Kriki’s Blog Power Shell articles
Kine’s Blog Power Shell articles
My Blog additional Power Shell articles