While I've created a lot of different logos and Icons, I have yet to try and create one with only one shape. This was a fun process and a bit of a challenge to stay away from my line and square tools.
Of course it all started with a circle. I then started to move it around with smart guides leading the way using the pathfinder to cut and dissect the circle into other shapes.

From there, I eseential started stacking elements on top of each other to come up with the finished product. The align and rotate tools were my best friends during this process.
