This is a massive tutorial! It could be called a xpath tutorial / xml Template tutorial / XSL Video Tutorial. I cover all of those topics and a whole bunch more.
I’ve also spent a bunch of time looking for common questions about XML and have included those answers in this XML Video Tutorial.
If you missed part 1 of my XML Video Tutorial, check it out first. All of the code follows the video and it’s heavily commented to help you learn XML.