The Drupal Form API provides sophisticated form techniques and also allows for almost unlimited possibilities for custom theming, validation, and execution of forms.

For some time I've been working on a little module I named Purge.

Performance optimization is a key element of every website development and often is not considered in the process of designing and theming.

One of difficulties of Drupal is the fragmentation of administration interfaces. Chapter Three addresses this difficulty by customizing the administration experience by championing the Panels as The Administrative Interface.