XML Topic Maps By the Book
http://www-106.ibm.com/developerworks/xml/library/x-think19.html

Ogbuji, Uche
IBM
2003

Abstract:

Topic Maps provide a system for organizing information, and XML Topic Maps bring this system to the world of XML. In this article, Uche Ogbuji examines XML Topic Maps, introducing the technology in the course of reviewing a key book on the topic.