What is this book about?
XPath 2.0 Programmer's Reference is the only
authoritative reference on XPath, a sub-language within XSLT that
determines which part of an XML document the XSLT transforms.
Written for professional programmers who use XML every day but find
the W3C XPath specifications tough to slog through, this book
explains in everyday language what every construct in the language
does and how to use it. It also offers background material on the
design thinking behind the language, gentle criticism of the
language specification when appropriate, and a diverse range of
interesting examples in various application areas.