With great power comes... tremendous flexibility. Drupal is an award-winning open-source Content Management System, and the feature-packed sixth release is right around the corner. It's a modular system, with an elegant hook-based architecture, and great code. These are a few of the perks that make Drupal a choice platform for developers who want the power of an established CMS, but the freedom to make it work for them. From social networking to AJAX to e-commerce, the hundreds of existing modules attest to Drupal's flexibility. When you create a new module for Drupal, it fits seamlessly into the look and feel of your overall site. If you can think it in PHP, you can code it as a Drupal module.

Drupal is an award winning open source Content Management System. Based on PHP/MySQL, its power and flexibility combined with its exceptional design mean it is already on the way to becoming the de facto standard for CMS Websites. Drupal’s modular design and structured source code make it both highly flexible and easily extended and modified. Drupal is extremely scalable, making it ideal for both a simple personal website as well as an industrial strength commercial or institutional web presence.

Pro Drupal Development is strongly recommended for any PHP programmer who wants a truly in-depth look at how Drupal works and how to make the most of it.

— Michael J. Ross, Web developer/Slashdot contributor