The first two books devoted to jQuery, Learning jQuery and jQuery Reference Guide, have just been published by Packt Publishing. Written by Jonathan Chaffer and Karl Swedberg, both books explore the popular JavaScript library in great detail. Learning jQuery begins with a gentle introduction to the various features of the library, followed by a number of real-world examples of jQuery in action. The book concludes with a discussion of some of jQuery's more popular plugins and a tutorial on creating your own.

jQuery Reference Guide presents an organized menu of every jQuery method, function, and selector. Each method and function is introduced with a summary of its syntax and a list of its parameters and return value, followed by a discussion, with examples where applicable. Throughout both books, the authors uphold the virtues of progressive enhancement and graceful degradation, and demonstrate the ease with which jQuery allows you to write unobtrusive JavaScript.

Both books are available for purchase at the publisher's web site. Learning jQuery is also available at amazon.com and other online booksellers, and you should be able to find jQuery Reference Guide there within the next couple weeks as well.