Chapter 4 starts a section of chapters (4 through 6) that look at the functionality contained within the
System.Xml in more detail.
In particular, here I look at the fast, forward-only read-only mechanisms provided by the .NET
Framework for reading and writing XML documents, namely the XmlReader and XmlWriter classes. I
explore the new XML reading and writing model and talk about the various ways using, which you can
read and write XML data. I also go onto discuss node order, parsing attributes, customizing reader and
writer settings, white spaces handling, and namespace handling, and other namespace support
you can learn xml at here