You can hide or display any layer at any time. Hidden layers can’t be edited, and don’t appear on screen or in print. Hiding layers can be useful when you want to do any of the following:
Hide parts of a document that are not meant to appear in the final document.
Hide alternate versions of a document.
Simplify the display of a document, to make it easier to edit other parts of the document.
Prevent a layer from printing.
Speed up screen redraw when a layer contains high-resolution graphics.
To hide or show one layer at a time, in the Layers panel, click the square at the far left of a layer name to hide or show the eye icon for that layer.
To hide all layers except the selected layer, choose Hide Others in the Layers panel menu.
To show all layers, choose Show All Layers in the Layers panel menu.