Ravikanth Chaganti, a Windows PowerShell MVP from Bangalore, India, has authored an ebook - WMI Query Language via PowerShell – which has been very popular, and is available as a free download.
The ebook has 9 chapters (56 pages of WMI and PowerShell goodness) and here is the high-level content outline:
Nice to Here that this book is from an MVP. Surely going to download and check this out.
Congratulation to the author...