Microformats are a method of defining and describing (X)HTML data so that is easily machine readable as well as human readable, making it more powerful. For example, you could use the hCard Microformat to mark up personal details on your web site, and then use a simple program to create a business card from that data, and transfer it to your e-mail program, address book, or mobile phone. In this book, noted web developer and long time WaSP member John Allsop teaches all you need to know about the technology: what Microformats are currently available and how to use them; the general principles of how they work, so you'll be able to understand and use future Microformat; how to use Microformats with web sites and software that already support them; and how to create your own. The focus is kept on practical examples as much as possible throughout.