Eyeliners are used to define and shape the eyes and represent an important element to the overall design of your eye makeup. For years, traditional eyeliners came in a pencil and were offered in basic brown and black. Today, thankfully, there are many forms of eyeliners and colors to choose from, including pencils, liquids, powders, gels and cakes. Each has its own application techniques and unique effect. Traditional pencils are handy on the go, provided you always carry a sharpener, as it’s important to keep them sharpened for an accurate and smooth application. Liquid eyeliners provide a dramatic effect. It's best to apply liquid eyeliner after applying your eye shadow, and be sure to allow the liner to dry before applying mascara. Powder eyeliners can be applied both wet and dry. It's important to use a small, thin, stiff brush for even application. Gel eyeliner, while similar to liquid, is easier to apply and often longer-lasting. Cake eyeliners have been around for many years, and as such, there are many who prefer this method because of its familiarity. Regardless of your preference, accurate and smooth application of your liner is essential to the overall effect and result. Experiment with thickness, as well as with different types of liners and different colors to achieve your desired effect.