Rating: 

I have been doing JavaScript programming for a few years and learned most of it off the Internet, from Netscape's DevEdge. However, I recently needed some advanced features and there was just no easy way to dig them up from the web. Then I got this book. It is well organized, comprehensive, thorough and it has all the details, tricks, and pitfalls of the language one may need to know in order to write a JavaScript program. Also, the care with which all the features of the language are documented for both IE and Netscape, as well as for the various browser/language versions is truly outstanding. I strongly recommend it as a reference. However, make no error, it is certainly not a beginner's book.

I sometimes wonder how does O'Reilly manage to keep up such a high standard in computer book publishing. They have all my appreciation.