Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Book was incomplete and a teaser for further purchases

Glossed over topics, didn't explain worksheets, and talks about video tapes not inculded but may be purchased. Also workbooks are not part of the package. As is the Book is dull, fragmented, and hard to read. The author failed to return calls regarding information on ordering a workbook that goes with the text apparently. The book is not worth the money or time. Maybe selling the whole package would make sense but just the book is useless.