Chapter 5: Data Communication: XML, XSLT, and JSON http://aspalliance.com/chapters/book.aspx?isbn=047178544X
An important part of any type of distributed application is how data is pushed around between tiers or layers of the application. Additionally, with Ajax, several concepts are fairly important to know and understand, concepts involved with building distributed heterogeneous environments. Accordingly, in this chapter, you are going to look at:
XML - XML is Extensible Markup Language. It is primarily used for data interchange.
XSLT - XSLT is Extensible Stylesheet Language Transformations. XSLT is designed to take XML data from one format and put it into another format.
The sample chapter is available for download here: