Learn Windows PowerShell in a Month of Lunches
This is the book I always wanted to use in live classes - so after teaching PowerShell for more than five years, I finally wrote it. This is the only book I'm aware of that doesn't try to make you a programmer by Chapter 3, and that focuses on a really effective order in terms of the outline. You hit about one new thing every lesson, and each one should take about an hour. Recently, I've uploaded almost 100 short video demos to YouTube (the book's companion Web site, which is listed in the book itself, contains links to the videos), which supplement each chapter of the book by actually showing you the examples from the book itself, and by covering additional tips and "gotchas."