The very mention of layer masking in Photoshop will have many photographers stampeding for the nearest exit, as it sounds complex, technical and far removed from the practice of taking pictures, writes Jon Adams. But suspending your natural reaction will lead to an interesting discovery, because layer masking is quite simple to understand, and even easier to do! In this video – the third in our series explaining the basics of layers in Photoshop – I’ll explain the concept of layer masking, and then show you how it can be used to create a fresh look to a photo with a couple of easy imaging techniques.