Head FIrst JQuery by Ryan Benedetti and Ronan Cranley, O’Reilly Media

First of all big thanks to the "Head First" series designers who gave a very good thought of how the book need to be organised,  the section "How to use this book" tells about all the book, the software required, examples location and how to set up the developers workspace.

The Author gently introduces the concept of Web - HTML + CSS, thats were we are more familiar with.  Explaining JQuery in side by side with CSS explains the non-intrusive nature on which JQuery is majorily used for.  Authors way of introduction of JQuery - why jquery is different then the other scripting library.
After giving a introduction the author goes over the various indepth of  JQuery like selectors, methods, events & function, and keeps going on to the deeper part where jquery is used the most  - Web Page manipulations, Effects, Animation, Custom Functions, Ajax and JSON.
The last two chapters are dedicated to jquery widgets  aka JQuery UI and indepth of JQuery API and objects.
Would have some more explanation of JSON and how that can benefit the data driven pages.