Reddit reviews PowerShell in Depth

Powershell in depth is really good after you get done with the month of lunches.

I have this book and I can tell you that I have not read it.

That and

• Powershell In Depth (2nd edition, new) - http://www.amazon.com/PowerShell-Depth-Don-Jones/dp/1617292184/
  
• Powershell Cookbook - http://www.amazon.com/Windows-PowerShell-Cookbook-Scripting-Microsofts/dp/1449320686/
  
  
  

Powershell in a Month of Lunches - https://www.amazon.com/Learn-Windows-PowerShell-Month-Lunches/dp/1617291080/ref=sr_1_1?s=books&ie=UTF8&qid=1467232090&sr=1-1&keywords=learn+powershell+in+a+month+of+lunches

Then, when you get the hang of it, Powershell In Depth https://www.amazon.com/PowerShell-Depth-Don-Jones/dp/1617292184/ref=sr_1_1?s=books&ie=UTF8&qid=1467232074&sr=1-1&keywords=powershell+in+depth

Outside of that, check out /r/PowerShell and work through the questions that people ask. No better way to learn than practice.