This is a slightly corrected version of Jeni Tennison’s classic and highly praised beginning book on XSLT that was formerly published by the Wrox imprint of Peer Information LTDA‚A (ISBN 1861005946). This book introduces Web developers and people with limited programming experience to the exciting world of "Extensible Stylesheet Language Transformations" (XSLT). XSLT is vital to realizing the promise of XML. If you, for example, have an XML document and you want to use the same document to appear both on the Web and in a printed document, you would need to use XSLT to transform the raw XML into the two forms. Note: Apress will be publishing a second edition (ISBN 1590593243) of this classic book. It has been pushed out due to delays in the development of XSLT 2.0. We expect Beginning XSLT 2.0: From Novice to Professional to publish in early 2005 unless the specification is further delayed.