Icons
Icons are used to indicate states or functions. If you click on the pencil, you will be able to edit information about a bookmark or a folder. If you click on the screen, it will open the link in a new window. If a folder is open, it indicates that the bookmarks you are looking at are in that folder.
Popup Menus or Drop Down Lists
There are times when you will be asked to make a selection from a list. This list will be contained in a pop up menu or a drop down list. Clicking on this menu will open the list and show you all available options. You choose your option by highlighting it and clicking the mouse.