Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Good background on XML, parsers...weak on styling

I found the in depth review of the parsing tools available to the Java community extremely useful. With no previous knowledge of XML, I was able to incorporate XML parsing into my apps in under a week.However, the book is weak on presenting styling information, particuarly in the area of XSL. I realize that this was and is a rapidly changing standard, but a basic background with examples would have been nice.