One of the things that frustrated me slightly however was the frequency of code repitition and screen captures for each new added feature, but this is a minor problem considering how well the books covers the subject.
I found this an extremely easy and interesting read, with the example based approach keeping me engaged in how each situation could be enhanced with use of jQuery. The sensible organisation of each chapter means that many asides are covered enough to give the reader a working knowledge of how complementary technologies are able to be used with the library. The book also includes appendices documenting a number of useful web development sites, not all specific to just jQuery. Overall, a thorough introduction to the language.