Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Terrible as an HTML companion book

Although this book covers pretty much all the elements of HTML, I discovered a significant number of incomplete syntax specifications. I was especially disappointed in its coverage of forms. The chapter just breezed through all the different types of form elements and didn't explain how data from these elements are handled when submitting a form. Because of the inadequacy of this book, I often find myself having to surf on the Net to find answers to my HTML questions.