Getting Started with the DocBook XML Dialect
http://www-128.ibm.com/developerworks/xml/library/xml-matters3.html

Mertz, David
IBM
2000

Abstract:

Gets you started with DocBook, an SGML/XML dialect that describes the content of technical articles and other documents. David discusses the benefits of using DocBook, and then describes how to plan and modularize a large document conversion project.