In this video, I explain what layer masks in Photoshop are and how they work. In quite a few of my tutorials I show Photoshop techniques that involve using different kinds of layers and layer masks. If you are experienced with using masks it’s no problem following along. But I know for a lot of us, layers and masks are confusing and keep us from using Photoshop. Advanced tools, such as luminosity masks and advanced techniques, such as exposure blending, are often reasons photographers want to get into Photoshop.