Instruct: Classify an Amazon review as either positive or negative.
Query: This book is very light...no substance

The good stuff is elsewhere ($ -> Rational) is the basic premise of this book. I would have to say that if you want an introduction to RUP then this is definitely that but no more. Don't expect it to do more than familiarize you with the general concepts of RUP. Almost every chapter ends with which tools you should buy from Rational.