Also "Professional Javascript for Web Developers" by Zakas is a pretty classic text too. Gives you a ton of background on Javascript, not as much as Simpson tho

Also "Professional Javascript for Web Developers" by Zakas is a pretty classic text too. Gives you a ton of background on Javascript, not as much as Simpson though (but the alternate perspectives are useful). Where this book really helps is by explaining how the browser works. Things like the DOM and "document" and "window" along with the HTML5 APIs aren't Javascript but you need to know them as well.