Overview of turning a layer's visibility on or off
Once a layer has been added to your map, you have the option of turning it on or off without having to completely remove it from your map. If a layer is turned off, it does not display on your map. You can, however, view a layer’s properties and edit and identify a layer even if it is turned off.
Making all the layers visible: On the Layers page of the Table of Contents, tap the visible icon to make all the layers visible. Tap it again to turn off all the layers.
Editing layers are visible: If a layer is checked for editing in the Table of Contents, it is always visible. In order to turn off that layer, you must ensure that it is not checked for editing.