The next step after adding a sidebar is to add widgets. Sidebar/widget areas are empty columns by default so you’ll need to add widgets to them in order to display information. WordPress has several default widgets and the Ken WordPress theme also adds some extra widgets. In this article, we explain about two methods for adding widgets to a sidebar/widget areas.
Dragging and Dropping Widgets
To add widgets:
Selecting Widgets from the Dropdown List
To add widgets: