There is a lot of info here, but it's attempting to focus on too-wide of an audience. The Javascript 101 section would be better left on the cutting room floor (or put into a separate article,) for example.
What is here looks really solid, though there are nitpicks for the pedants to find and gripe about. I am especially interested to see what shows up eventually in Part III.
Big, big kudos to the author for putting everything onto a single page.
FWIW, the reason there's a JavaScript chapter is that I find many, many people come to jQuery via HTML/CSS, and neglect to learn JavaScript on the way. To dive straight into jQuery without explaining the larger JavaScript scene seems counterproductive to what I'm trying to accomplish when I teach these classes. That said, you're more than welcome to skip that part :)
What is here looks really solid, though there are nitpicks for the pedants to find and gripe about. I am especially interested to see what shows up eventually in Part III.
Big, big kudos to the author for putting everything onto a single page.