I wanted to learn JavaScript, up and rearing to go. So I got David Flanagan's book "The Definative Guide". But the concepts flew over my head. Its the best book on JavaScript, without a shadow of a doubt, but simply fearful to the poor old newbie like myself. Don't get me wrong, its well written, but if he had written it the way I needed it to be, it would have taken up 100000 pages. Shipping would be a nightmare!
Anyway, about this book.
It's a good book, great for newbies. I don't know why the other author review mentions that you need to have prior experiance with a programming language. That's rubbish IMO. Sure he mentions Javascript having a simularlity to C/C++/Java, but its not like you gotta learn those languages, its just a mention, thats all.
He explains basics, like what a token is, how if/else/for statements work. You know, basic stuff for a newbie to learn. If you are a programmer already, just skip the first five chapters, and you'll be in the meat of the book about JavaScript, so its just as relevant for experienced programmers too.
Anyhow, once you are finished (and applied the concepts with a mock up webpages) you are no longer a newb. Then move on to that gem which is David Flanagan's Definative Guide. After going through that and applying it, you'll be well on your way to becoming a "good" JavaScript Programmer.
P.S: Becoming actually Good is no mean feat. Take JavaScript seriously folks!
P.P.S: You MUST learn HTML and CSS before reading these books. JavaScript is almost entirely based in the real world on manipulating markup and style sheets. To attempt to learn JavaScript without knowing them properly (I do mean properly) would be a major folly.