Fibonacci was an Italian mathematician that lived during the middle ages between the eleventh and twelfth centuries. His mathematical calculations called “The Fibonacci Number” are actually a sequence of numbers used in computer algorithms today. Applying this numbering sequence to a graph, you get a Fibonacci spiral, which is created by drawing circular arcs connecting the opposite corners of squares. This is known as the Golden Spiral using the Golden Ratio.
The cool thing is that this mathematical sequence appears in nature in the form of branching trees, flowering plants, ferns, and pinecones, etc… So, this design is like natures sweet spot. Not only is it pleasing to the eye, but it has a perfect balance in design.