XPath^{<small>TM</small>}&#160;2.0 Programmer's Reference (Programmer to Programmer)

Rating:
Summary: Written by an expert for the wannabes.
Review: This book is destined to be the prefered reference. It is well written in great depth and detail. You will however almost definitely want the XSLT 2.0 by the same author if you are new to this area as the examples in this book are more extensive with case studies, as opposed to the code snippets you'll find in here.

The book is not a tutorial, but instead aims at complete and detailed coverage and describing the differences between 1.0 and 2.0.

Rating:
Summary: Very in-depth
Review: This is, as you would expect from Michael Kay, an excellent and extremely in-depth work on XPath 2.0. From the basics of the object and typing model, through the syntax and into a function reference. In my opinion most average XSLT users could probably get away with the XPath coverage in Michael's other book XSLT 2.0 for Programmers. But for those implementing XPath, or who are using it as a central architectural mechanism, you will want the in-depth coverage in this book.