The one thing every Joomla! developer needs to do is customize the appearance of their installation, which means using the Joomla! templates. The template controls the overall look and layout of the site. It provides the framework that brings together common elements, modules, and components as well as providing the cascading sheet for a site. Using template code makes it easier to validate to the World Wide Web Consortium (W3C) standards. Developing templates can be the stumbling block from the developer's perspective. They have the practical aspects of Joomla! figured out, but creating templates is one of the hardest elements, taking them out of the familiar Joomla! interface. "Joomla! Templates: The Official Guide" is the only book officially endorsed and approved by the Joomla! project, and written by a member of the Core Team to cover all aspects of template design, development and customization. The book is organized to cover essential concepts in a practical, task-oriented way, and will include a definitive reference on template parameters. It will include specialized material not available in any other book and will include useful appendices of reference material. This book offers authoritative coverage of topics including creating a custom module chrome style, how to upgrade a Joomla! 1.0.x template to work with Joomla! 1.5.x, Joomla! modules and more. The author provides comprehensive coverage of various aspects of working with Joomla! templates including creating, customizing and upgrading. "Joomla! Templates: The Official Guide" show the reader how to use templates to allow sites to load faster, be easier to maintain, and to perform better in search engines.