These three books will take you from noob to guru! Don't be fooled by other inferior products! These are the books that I used and I can personally vouch for them.
They are written by arguably two of the best PowerShell masters out there: Don Jones and Jeff Hicks.
I recommend reading them in the order displayed below.
|Learn Windows PowerShell in a Month of Lunches|
|Learn PowerShell Toolmaking in a Month of Lunches|
|Learn PowerShell Scripting in a Month of Lunches|