Sams Teach Yourself XML in 21 Days , written by expert author Steve Holzner, offers hundreds of real-world examples demonstrating the uses of XML and the newest tools developers need to make the most of it. In Week One, he starts from basic syntax, and discusses XML document structure, document types, and the benefits of XML Schema. Week Two covers formatting using either CSS or the Extensible Sytlesheet Language, and working with XHTML and other tools for presenting XML data on the Web, or in multimedia applications. The final chapter of week two discusses XForms, the newest way to process forms in XML applications. Week Three applies XML to programming with Java, .NET or JavaScript, and building XML into database or Web Service applications with SOAP. Along the way, Steve shows readers the results of every lesson and provides both the "how" and "why" of the inner working of XML technologies.