The books starts off with a very quick introduction to Drupal. It is obvious that the intended audience is not newcomers, and that this is not a basic introduction level text. It is assumed that anyone reading this is familiar with web site creation and administration, web hosting basics, and knows how to install a Drupal site that uses the default theme. You get a quick tour of the main core features of Drupal and some nice web browser tools for developers. Then we get to the meat of the book.
The book contains useful information on how to use the drupal.js library, written by the Drupal developer community, to do many tasks, such as the sample collapsing blocks project that lets guests choose whether to allow information to be displayed or to shrink boxes so that there is more space on a page. We learn how to use js to create beautiful effects and help with site theming, how it can be used to translate your site into other language for guests, and even how to build your own modules.