View the list of the available zoom methods using the ribbon.

The zoom settings are found on the View tab, in the Zooming group.

Icon Icon text Description Shortcut
Zoom to extents Zoom the content of the window to its extents. F5
Zoom area Zoom to display an area specified by a rectangular window.  
Zoom in Zoom in on the contents of the window. +
Zoom out Zoom out from the contents of the window. -