The Golden Spiral

Many here know about the " Rule of thirds " maybe the most well know principle of photographic composition.
Its principal use is to create aesthetically pleasing compositions, but you can add some energy and movement by applying the golden ratio.

the mathematical ratio is present in nature from flowers to animal, the golden ratio is a good start point to create great compositions, we can use the golden spiral to make such work.
when designing our own poster ideas we shall try to stick to this ratio, to ensure our poster is as aesthetically pleasing :)