You also will come across

icons that don’t fall into any of these categories. Some icons represent disk
drives, printers, help files, settings, and so on. Don’t worry, however, you can manipulate virtually all
icons by using the set of basic skills in the following list:
As you know, you can open any icon by double-clicking it. If you’ve opted to switch to the
single-click approach, you also can open the icon with a single-click. Whatever the icon
represents will open in a window atop the desktop, as discussed in a moment.
To move an icon, drag it to any new location on the screen. To move a bunch of icons, first
select the icons you want to move by dragging the mouse pointer. Then drag the whole
selection to a new place on the screen.