The logo for my “company” (i.e., the name I use to sell stuff through Print on Demand sites) Studio Fibonacci. It’s a golden spiral; a spiral whose growth factor is φ, the golden ratio. The Fibonacci sequence is: 1, 1, 2, 3, 5, 8, 13, 21, 34, 55, … if a Fibonacci number is divided by its immediate predecessor in the sequence, the quotient approximates φ.
And, no, I was not inspired by The DaVinci Code. 