Both the needle, air cap and head assembly can be purchased at almost any craft or hobby shop that sells airbrushes and airbrush parts. The airbrush trigger is what allows you to actually operate the airbrush. In a single action airbrush the trigger controls the air flow. In a dual action airbrush the trigger controls both the air flow and the paint flow. Airbrushing nails to airbrushing cars is explained in great detail to help you advance further no matter what surface you like to put your airbrush art on. Airbrush2: Concepts for the Advanced Artist by Radu Vero will help to teach the experienced artist more advanced techniques. By learning these advanced techniques the artist can start to create even more complex airbrush art. The trigger will control the air and the amount of paint that comes out is determined by the needle adjustment on the back of the airbrush handle. Dual action is when the trigger on the airbrush controls both the air and paint. The trigger is pressed down for the air and back for the paint. Now when it comes to the feed on the airbrush there are three types of feeds that you can choose from. With the time and cost of creating great realistic airbrush art tattoos one does not want it to fade within a couple of days. While an experienced airbrush artist may know this a beginner may not, so it is worth mentioning. When doing airbrush art on skin make sure you are using airbrush paint that is designed for the skin. There are several ways that you can get your airbrush art seen. Most of these ways will actually cost you nothing. The use of the internet has made it where you can show your work to the world for free. Almost everyone on the internet has started using a blog. Well you should be no different. Get yourself a free blog and start showcasing what you can do. In 1893 the world seen a more modernized version of airbrushing when Charles Burdick patent the first airbrush device. This device would be used for retouching photographs until around the 1920. During the 1930s airbrush increased when advertisement agencies jumped on the bandwagon to create advertisement of new products.