Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Not worth the money

I was totally amazed by the author's capability to write 700 pages of text and still have nothing to say. People that would normally buy books on directory services want to increase their knowledge in that particular area. If that is your objective, don't buy this book because it is very unlikely that you will learn anything new. I don't consider myself as having a strong technical background, and did not learn much.