Essential XML Quick Reference
This free ebook is for anyone working with todays mainstream XML technologies. It was specifically designed to serve as a handy but thorough quick reference that answers the most common XML-related technical questions. It goes beyond the traditional pocket reference design by providing complete coverage of each topic along with plenty of meaningful examples. Each chapter provides a brief introduction, which is followed by the detailed reference information.

Putting Namespaces to Use
In this tutorial, you'll learn: importance of namespaces, how namespace names are guaranteed to be unique, declaration and reference namespaces, usage of namespaces to merge schemas.

Addressing and Linking XML Documents
How to navigate through an XML document using XPath patterns; How to build powerful expressions using XPath patterns and functions; What technologies come together to support linking in XML; How to reference document fragments with XPointer; How to link XML documents with XLink;