The bigger the artwork the longer it will take the artist to pain the henna design on. Airbrush art goes on quickly thus saving lots of time compared to henna as well as airbrush art is waterproof. Unlike henna lots of exposure to water still will not fade your tattoo. Where it would take an artist 6 hours to pain on a large henna design the same artist could airbrush the design on in around 30 minutes. 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. Remember to do this gently so that you do not break your needle. The better care that you take of your airbrush the longer it will last. So keep your airbrush clean with the right cleaners and once a month do a full break down and cleaning. With needles most artist find that the airbrushes coming out of China bend easier than any of the other airbrushes. While airbrush art can give you endless possibilities it can also leave you stumped on a design project. Finding inspiration though for your airbrush art can come from many forms. The different places that you can look for inspiration can help you when you are stumped on what to do with a project. When you are feeling the creative block coming on then start looking around you. 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. Stencils can be used to airbrush art on to your automobile just the same as any other surface or project. The art that you create with airbrushing is only limited to your own imagination. There are plenty of places to acquire stencils or get design ideas so that you can create your own stencils. If you do create your own stencils for airbrushing your automobile do not use paper to create your stencils.