What is XML, and Why Should You Care?--McIlroy

If you've been following the latest developments in the world of electronic publishing, you've probably come across the abbreviation "XML" (short for eXtended Markup Language). If you've seen it, you're probably confused about it. Most people are—it's very complicated, and there's a lot of imprecise and overly technical information out there. If you haven't heard of XML before, well, I guess you just did. Let's take a look at what XML is, and why it might matter to printers and publishers.