Dojo provides a lot of power and attempts to make it digestable in layers. For server-side developers, there's "widgets without coding", for HTML+CSS devs Dojo provides wonderful facilities for quickly building template-driven widgets, and for serious JavaScript and DHTML hackers Dojo is the standard library you will wish JavaScript always had.

This book serves as a guide to these layers, introducing concepts as you need them and working downward from high-level usage to getting your hands dirty in building your own widgets, custom namespaces, and unit tests.

In the Introduction, you'll get an overview of how Dojo can help you, what problems it solves, and where in the book you might be able to best find the information you're looking for. Also, remember that because this book is maintained by the community and is online, you can search it (and the rest of the Dojo site) at any time.

Lastly, thanks for checking out Dojo and the Dojo Book. It's your applications that have inspired us to build Dojo and the stories of how people are improving experiences with the toolkit that keep us going.