In the brainstorming stage of this project I was debating how I was going to illustrate a marathon as a poster advertisement. I thought to myself, "What is a marathon?" In this context I felt that a marathon is a race. So one thought lead to another. Race, people, running, feet; then it hit me. I decided to illustrate someone running across a bridge, using the ground for the viewing angle and only showing the person's leg. This lead to a simple but effective illustration of a marathon.