There are several areas in Umbraco 7 CMS. One of these areas is called Content. This is the area with all the editorials that are created using Umbraco 7 CMS. This folder contains Recycle Bin to handle unwanted files. Umbraco official website is a good starting point for finding information on content editing. Check out document types and properties at the Umbraco website.
Other important areas of Umbraco 7 CMS are:
Look and Feel of Umbraco 7 CMS can also be accomplished by navigating to Settings section and editing HTML5/CSS3 templates. Umbraco relies on Master Templates and Layouts. Once more read more about Umbraco 7 templating on templates and css in Umbraco at the Umbraco website.
Umbraco Gallery is another important feature of Umbraco 7. You can add a lot of features and functionality by learning how to install Umbraco modules.