Start off by opening Adobe Illustrator, if you haven’t already. I hope you have already met most of the tools, as this tutorial is targeted at the intermediate Illustrator user.
Let’s begin. Create some geometrical objects; circles, triangles, lines, spirals, etc. Place them in a fun color scheme; I picked CMYK to have a good example and because I like it. If you really have no idea, you could always take a look at the Adobe Kuler website.
With the objects you’ve just made we will be creating our entire piece. Arrange them in a fun way, so you get a nice composition. This is something you’ve got to do with your eyes and your mind. Play with them. And don’t use every object in every color. For example for the key (black) I only used a triangle. Let yourself go. You don’t have to keep the entire objects too. As an example, I cut some circles in half using another square and the Pathfinder window, see the following:
I also cut pieces away from the stroked circles. But you can’t do that with the pathfinder, because the path will close that way. The thing you’ll have to do here is add anchor points where you want the line to end and after that delete the points you don’t want to be there.
If you played enough with them you could get something like this. But please don’t create exactly the same thing, that would be really silly and you don’t learn anything by doing that. Everyone can copy paste. Work on experimenting with your composition.