Phoca Gallery can be downloaded from http://extensions.joomla.org. In order to install it, use the Extensions Manager from the top menu bar and navigate as usual to Extension | Install/Uninstall to upload the component. You will be led though the installation from the first screen, which is shown in the following screenshot:
After the installation is complete, you will see a new screen that shows you the Phoca Gallery Control Panel. From this page, we can add and delete images, and we can configure Categories, Themes, Category Rating, Image Rating, and Comments.
Let us, however, first create the categories.
For this ...