HTML is like Latin-a language that soon won't be spoken anymore. The new mother tongue for creating pages on the Web is XML (eXtensible Markup Language), the second-generation HTML available with Internet Explorer 4. How can you put it to work fast? This professional learn-it and do-it guide explains what XML is, shows how to implement it, and helps you master the intricacies. Invaluable for Web developers and content providers alike.