Experts believe that a primitive form of airbrush art was used by ancient civilizations. The method believed to be used in this primitive form of airbrush art was the use of a hollow bone in which to spray the paint out of by blowing through it. While this is a very primitive method compared to modern day forms of airbrushing, it does still work. Solvent based paints should be cleaned with a solvent based cleaner. All water based paints can be cleaned with water or a commercial cleaner designed for airbrushes. Windex is useful when cleaner your airbrush between color changes while using your airbrush. Never soak or leave your airbrush exposed to Windex for any real length of time. Thus like the needle you will be unable to create desirable airbrush art. 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. 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. It is for this reason that the bottom feed is also referred to as a siphon feed. Since the artist can attach the cup to the bottom of the airbrush the colors can be changed quickly by using different cups prefilled with the colors needed. So someone who has no real prior knowledge this book will help you understand the airbrushes that you will be using when creating airbrushed artwork. Getting Started in Airbrush by David Miller is also a great beginner's book on airbrushing. The book will give step-by-step instructions on the basic level of airbrushing techniques and how to create different effects with your airbrush art. Why You Should Learn Micro Airbrush Art Micro Airbrushing is a valuable skill for all airbrush artists. Being able to do micro airbrushing will allow for the artist to create a more realistic and more in depth detail on all small areas of their airbrush design. It is in these small areas that a lot of artist miss the chance to really define the details because they are unable to fully create the detailed area.