I own several Javascript books, all of which seem to be littered with mistakes, and code that doesn't work across all browsers, except for this one. Developing web pages is the hardest of all development technologies, you have to know a lot about different technologies, and make them work across all browsers. Thankfully Netscape, which was a major problem in the past, has come a long way and caught up to the rest. However, making Javascript work for each browser is hard enough, and this book really comes to the rescue. It tells you what works for which browser. The authors have done their research, and has helped me tremendously with the work I do for my clients. I will continue to support the Javascript Bible series, and I hope the authors continue to produce a great reference.

Pro: really good reference work for most people
Cons: 1) Not for someone who doesn't know either javascript basics or another scripting language. 2) Organization is good, but it isn't an encyclopedia and it isn't a start-to-finish tutorial. 3) Poor typeface decisions.

This book is the greatest for several different types of people. First, anyone who knows the basics of javascript, from advanced beginner to advanced js user. Second, anyone who wants to learn javascript and already knows some programming; you can use it as a tutorial, but only if you don't need much explanation about scripts and object-oriented programming.

It really is just excellent for someone who has previously learned something about one of the chapters but needs a refresher and/or more detailed/comprehensive walkthrough.

Four stars instead of five for a completely unnecessary mistake. Unfortunately, the W3c ignores people who do not have eagle-sharp vision and will fill a page full of semicolons and colons, or parens and curly brackets. If you don't have a font that clearly distinguishes these, it is a major source of semantic errors and eyestrain. The font chosen to print the code in this book could not be worse. Colons and semicolons are almost impossible to distinguish (not to mention periods and commas),and curly brackets look like thin lines with no curls.

C'mon guys. There are fonts of every type where periods and commas are easier to distinguish, and curly brackets have a distinct shape. USE THEM FOR PUBLISHING CODE!!

This "Bible" covers everything that is needed for JavaScript programming. Everything is very well written and very easy to understand with clear code examples and real world applications. The beginning tutorial is a great way to get beginners started then the more advanced topics are covered in the Book or on the CD with all of the examples listed on the CD as well.

This is a book that I will continue to use.

Definitively it's the javascript bible.

If you want to fine tune your AJAX apps you'd better buy this book.

It's extensive object and fuction reference does not leave anything in the shadows.

This book is worth every cent.

An overwhelming amount of information without a simple beginning. The author jumps from beginning level information to way too sophisticated so fast that it will lose any non-technical person.