Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Not much there.

I'm not sure whether the author's purpose in writing this text book was to create a text on time series analysis or a manual for R users, but whichever it was, he didn't succeed. This is a very slim text (especially considering how much it costs), only 139 pages in total, and not surprisingly, there's just not that much in it. Pfaff covers a reasonably large range of topics, including stationary ARMA processes, cointegration, unit root tests, etc, but only a few pages are devoted to each topic and no worked examples are provided to assist the reader's understanding (exercises are provided at the end of each chapter, but no solutions are given). As the title suggests, some R code is given to implement various techniques that are described throughout this book, but this is never annotated and you would be better off looking at one of the various R tutorials that can be obtained for free on the internet.