Here is the official guide to developing sites using Joomla!, prepared by specialists who are part of the community of this system. The book covers all stages of creating a site and working with all built-in components, modules and plugins of Joomla!. Issues of site design management, setting up and editing templates, as well as creating your own design templates are considered. In addition, the publication highlights the features of search promotion sites on Joomla!. The book discusses versions of Joomla! from the 3.x release family. and, according to the release schedule of the system, the information contained in it will not lose its relevance, at least until 2015.