This video is targeted to beginners to Photoshop (Ps). But, anyone who'd like a quick, basic review of Ps layer principles might find it helpful too. In this video demo I define what a layer is, how to build up a layer stack, how to move content around on layers, modify it or change layer order, how to hide the visibility of layers, how to name layers and to delete them.
Additionally, I briefly cover the basics of working with Adjustment Layers and modifying layer content (including on the layer mask).
I'm working with Ps 2023 in this demo video - but the principles should be relevant for those using earlier (and later - for the future) generations of Photoshop too.