"Have you ever seen those outstanding fractal images with a lot of swirls and colors? Some of those were build simulating fractals or repeating shapes, where each shape is a reduced part of the whole, others were build mathematically. In this tutorial, we'll create a stylized fractal design using only Photoshop." Alvaro Guzman
Here is a link to the written version of the tutorial How to Simulate Fractals in Photoshop and the video version is below.