This document provides instructions for installing Joomla! 3.0 on a local host. It first explains what a local host is and why it is needed to run Joomla!. It then instructs the user to install XAMPP, which is a package containing a web server, PHP, and MySQL required to run Joomla!. After installing XAMPP, the user is shown how to check if the local host is working properly. The document then prepares the user for the next steps of installing Joomla! itself.