JS: The Good Parts is will be a quick and informative read if you've already done a bit of JS programming. Once you're done with that, the next book I'd read is ppk on Javascript (http://www.amazon.com/ppk-JavaScript-1-Peter-Paul-Koch/dp/03...), as it's the only JS book I've found that talks at length about the BOM (browser object model). Finally, once you're comfortable with writing JS but really only need a library reference, you can pick up JavaScript: The Definitive Guide by David Flanagan, although you can probably do without it if your patience and Google-fu is strong enough.