Instruct: Classify an Amazon review into positive or negative sentiment.
Query: Agree with Eau Claire -- This book is fluff

This book is too lightweight to be called a "Technical Reference." For those wanting a technical reference, go to Microsoft's MSDN and white papers. This book is a lightweight regurgitation of all of that. It's a made-for-TV-movie of Active Directory, complete with advertizements. Don't bother.