There are a number of different forms of nail art available. All of them serve the same purpose, and that is to decorate the tips of the fingers. It is a way to improve the appearance without having to do anything drastic to make the change. This is why it has been a popular form of expression throughout history for a very long time now, and will continue to be.
One form of nail art is old fashioned nail polish, sometimes referred to as varnish. What this does is to just add some color to the tips of the fingers. This is a custom that originally began by simply applying a stain from a berry or other natural substance and then applying it to the fingernails. It is an inexpensive way to have a little fun and add some color and expression to your body without having to make any permanent changes to it.
Another form is getting professionally airbrushed false fingernails, or if yours are long enough you can have your real ones decorated with airbrushing. This is a process where the artist uses an airbrush and adds a design to the tips of the fingers. When done this way, the design that is added can be very extravagant. There have even been cases where some have had their toenails airbrushed because they like to grow them long as well.
French nails are another form of nail art. These are another simplistic design, but add a good deal of beauty to the hands. This is a false tip that is applied to the end of the fingers; however, these are designed to look like normal fingernails. They are pink over the area where there is still skin underneath and white at the ends where there is not. These are a great design for those who either want fingernails that look pretty but are unable to grow their own out at all, or those who have weaker fingernails and prefer the durability of the false ones.
Yet another form is the use of tattoos that are made for the fingernails. These are small images that are made similarly to a temporary tattoo that you might buy for a child. They have a design with a clear area around it. You cut out the design and put it on, and then you put a clear polish over it. You can apply these over a color polish, or just naturally, and either way it will be covered with a clear coat to keep it protected.
There are a number of different ideas and applications when it comes to nail art. If you are unsure which one would work for you, and then just try one. If you are uncomfortable trying something that might be too expensive, then you should start with something that is simple and inexpensive. This way if you end up not liking it you haven't got that much money invested in it. If it doesn't work out, then you know for the next time not to choose that one.