A model promotes products or helps a brand deliver a message through their visual appearance. They work for a variety of clients and reasons such as posing for artists, modeling clothing apparel, or as extras in a commercial. Some models even specialize in a particular area of modeling, such as runway models, fashion models, or even fitness models. Models don’t need a formal education to get their foot in the door as models are needed for every age, race, shape, and size. However, getting a modeling agency to represent you is necessary.