Beginning XSLT: Transforming XML Documents and Data introduces the XSLT and XPath concepts and methods, showing how XSLT relies on XPath, and how the processing model is different from most programming languages.  Covers both version 1.0 (still required for some processors) and version 2.0 features.  Looks at both document and data oriented XML vocabularies.  Book Contents in Brief: XSLT and XPath explained Using templates Control and branching Variable and parameters Sorting and grouping String, dates and numbers Using modular stylesheets Working with multiple documents Generating identifiers Working with text Testing and documentation Case study demonstrates how to build a static web site, which contains (partial) reference information on XSLT 2.0 elements and XPath 2.0 functions.  All topics contain incremental code examples.