The Content Pane displays the contents of the folder that is selected in the left pane. When a folder is selected the Content pane displays the books in the selected folder and any subfolders.
The Content Toolbar lists the currently selected folder.
A Contributor can create a new book in this folder by clicking the Create New book button.
The Sort by: menu will list the contents of the pane by the time modified (newest or oldest) or alphabetically (ascending or descending).