Shortcode is a powerful content building tool http://codex.wordpress.org/Shortcode.
Theme comes packed with a lot of shortcodes allowing you to add complex styled content with little effort. The shortcodes are available under the visual formatting options on the post / page editor. Make sure you are on the “visual editor” tab, the shortcode buttons are on the second row. Simply hover over a button to see which shortcode it is and then click it and the shortcode will be automatically added, then you need to populate the content and parameters.
Examples of the shortcodes you can find here http://richer.artstudioworks.net/shortcodes/