Using Iteration in Design

Without realizing it, I've been using iteration in my graphics and digital designs. Because I don't have any formal training in arts and design, I am trying to fill in my knowledge gaps. This means going back to understand the basic theories and ideas that build good design. I felt this is a necessary step for me so that

1. I can perform at my best and

2. I can communicate well within this field.

Besides, no reason to tell people I don't know what Iterative Design is, when it is exactly the process I used to create this site!