An exploration of ways to represent Innovation graphically led me to the portfolio of Susan Kare. The name may not sound familiar, but her work certainly would be. Susan Kare has been designing interface icons since the birth of the interface in 1983. She is responsible for the folder, the paint brush, and the trash can, to name a few.
I highly anticipate a Mongrel Expose on her work, but in the meantime you can check out her online portfolio!