Short Layered Hairstyles - One popular short layered hairstyle is the bob. The bob can be cut at an even length or layers can be added to offer a variation on the style. This style probably allows for the most variation in the length of the layers. The deciding factor for the length of the layers is how short you want your hair overall. Remember to ask your stylist for opinions on the different varieties if you are uncertain of which layered bob would look good on you.