Date: Nov. 4, 2000
Link: http://www.oreillynet.com/pub/a/p2p/2000/10/24/ozzie_interview.html
Source Author or Organization: Steve Muench, O'Reilly Network

In this article the author (the Oracle lead XML Technical Evangelist and development lead for Oracle XSQL Pages) offers a stepwise method for authoring a well-formed XML document, inspired by Strunk & White's "Elements of Style".

Checking to be sure a document adheres to the 10 "Elements" (or basic rules) insures well-formedness. Reading the rules plus explanatory text equals an introductory tutorial.