Layers are like transparent containers for managing content. You can find a document’s layers in the Layers panel (Window > Layers).
Layers contain the graphics, text, or other content that make up a layered file.
Layers are arranged in a stack in the Layers panel. In the document, content on the layers at the top of the Layers panel appears in front of content on layers that are lower in the panel.
Layers allow you to move, edit, hide, lock, and work with content on one layer without affecting content on other layers.
To hide a layer, click the eye icon in the Layers panel. Click where the eye icon was to make the layer visible.