ISBN0596101996

Authoritative, very well written, very well structured, complete, a pleasure to read.
The intricacies of Javascirpt are very well explained, it might not be an easy read for the average script kiddie but if you want a book that thoroughly describes the language and its browser integration, events, dom, css handling ... look no further.

When I first started programming javascript that lasted only a week or so (this was around 2000), the trouble I had with it was with the loose typing and the generality of the language. After reading the core portion of this book, I got to see the advantages and power of what I had problems with. It only took me 12 hours to go from literally clueless to semi-proficient. It also helped that I went through a whole semester of software design in C++. Another subtle part of the book that you do not need to have a semester of software design to learn the language, the author does well to explain the material well. If you are new to javascript, I'd probably get another book to go along with this.

If you want to master Javascript and read just one book, then this must be the book you want to buy. Covers A-Z, detailed. If you are beginning on AJAX then this book is must read if you are Javascript beginner. 5 Stars.

Its pretty lengthy and Javascript has developed some since this came out so I don't know how usefull it still is.

This book is perfect for anyone working on Web sites and uses JavaScript. From learning JavaScript to finding "recipes" on doing work, this book has it all. I cut a project from 10 hours to 1 hour with this book's help.