A quick note from Amazon:
I don't know if I should buy this book or not, because many features listed above seem very similar to the jQuery Cookbook's ones. However, this is a SitePoint book, and I always got useful tutorials and guides from this site. I think I should consider it really carefully. Anyway, it doesn't cost so much, so I think that I'll probably take it.
PS: If you've read this book, please let me know how did you find it.