Best XML Tutorials from TopXML

TopXML covers all uses of XML in many computer languages supprting XML, and provides working XML sample code, XML tutorials and XML-related references, authoring tools, XML developer resources, XML discussion forums and XML blogs.
Here are their best XML tutorials that will help you to get started with learning what XML is used for and how to code XML. These can also be used as a refresher to hone and increase your XML skills.

Best XML Tutorials from TopXML

Learn XML

Understanding XML game

10 page PHP SimpleXML reference

BizTalk and XML Interoperability

Kurt Cagle's 60 Webtricks

Python & XML

An exploration of XML in database management systems

Building a Client-Side XML Application

What Is XML and Why Should I Care?

XLink: Creating Powerful, Flexible Hypertext Structures

XML Application on a Unix Server

XML for the VB/ASP Programmer

Using VB and ADO to return and update Record Set based XML

XML Interoperability

XML and Server-Side Processing

XML-ify your stored procedures

XML Structures for Existing Databases

XML, Webservices, and the .NET Framework

XML, Webservices, and the .NET Framework

XML and Binary Data

Using XSLT to Transform XML

Using XML Technologies to Build eBusiness Applications

COM+ and CORBA Interop with XML-based Web Services

Real World XML: Examples of XML at Work

Developers Guide to XML

Using XML and tiered solutions