Her videos will give you a more visual learning aid than you would get from the detailed directions in her books, so if you learn better from watching then the videos are your best bet when learning from Shanteau. Pamela Shanteau also teaches workshops around the United States that offer a hands on learning experience for airbrush artists. The gravity feed is a top mount cup that uses gravity to pull the paint down into the airbrush. This feed is great for airbrush art designs that call for fine detail as the gravity feed uses less air pressure. The less air pressure means that you can use slower movements when airbrushing. The bottom feed is where the cup is mounted to the bottom of the airbrush and the paint is brought up via a siphon tube. Airbrush Art Paints When doing airbrush art there are many types of paints that you can use. The type of paint that you use will depend on what you are airbrushing. Some paints can only be used on certain surfaces and are not safe to use on other surfaces. So make sure the paint you are using is safe for the surface you will be putting your airbrush art onto. Killer Klown with Javier Soto will show you how to create airbrushed clowns. This video will go into how to create the popular psycho demented style of clowns. These style of clowns seem to very popular with custom paint jobs. so if you are wanting to get in on how to create these clowns, then this video is for you. Even if you do not go with the Iwata though remember to always go with named brand and never use any knockoff airbrushes. You will need a air compressor that is designed for airbrushing on nails. The best air compressor to use is the Iwata Studios Series Silver Jet Air Compressor. While this one is the best one you can go with any small compressor that has an 18 psi. Take the time to gain knowledge of all the parts of your airbrush will help you to learn how to properly work your airbrush and also how to take care of it. If your airbrush is internal mix then it will have a needle. The purpose of the needle is to control the paint flow. Any damage to your needle can cause very bad paint spray patterns.