Articles and Books:

Kay, Michael (2000) XSLT Programmer's Reference, Wrox Press , Birmingham, UK.
(Order from amazon , order from Barnes and Noble , compare at bigwords , compare at CampusBooks4Less , order from Chegg , or search eFollett )

A variety of books concerned with practical aspects of XSL are available (to members of the JMU community) from Safari Books Online, including:

WWW Pages: