If you want to add layers in Photoshop, there are a few things you need to know. First, you need to create a new document. Second, you need to select the layer that you want to add the layer on top of. Third, you need to click on the “New Layer” button and then choose “Layer from Image.” Fourth, you will need to find the image that you want to use as your layer’s source and then click on it. Fifth, you will need to choose how many layers your image will have and then click on OK. Sixth, you will need to name your new layer and then click on OK again. Seventh, you will need to choose where your new layer should be placed in your document and then click on OK. Eighth, you will now be able to add your new layer by clicking on it with the mouse or by using the keyboard shortcut of Ctrl+J (Windows) or Command+J (Mac). ..