Go to http://www.CraneSoftwrights.com/links... to watch five hours of this 24-hour class at no charge ... it is not necessary to use a credit card or even to create yourself an account on Udemy. Just scroll to the bottom of the course page and click on any lesson marked "Free". And there isn't a time limit on watching any one of the lessons.
Remember on this particular segment to skip to 02:44 of the presentation to skip over the instructor introduction (you can read that later!).
This is segment 1 of 3 segments of the Introduction/Overview from "Practical Transformation Using XSLT and XPath Video": an interactive audio/visual training video over 24 hours long covering every element, every attribute and every function of XSLT and XPath versions 1.0 and 2.0 with lecture, handouts and hands-on exercises.