“XML is widely used for the definition of device-independent, system-independent methods of storing and processing texts in electronic form. It is now also the interchange and communication format used by many applications on the World Wide Web.” (A Gentle Introduction to XML, n.d.)
Do you need to learn XML basics fast? I recorded a short (6 minute) introduction to XML. Here’s a link to the prezi.
A Gentle Introduction to XML. (n.d.). Retrieved September 6, 2013, from http://www.tei-c.org/release/doc/tei-p5-doc/en/html/SG.html