I believe process is one of the most mesmerising things to see in design. As a designer, I go through many rounds of amends, redoing things and crafting them until I get it right. In the process, many things will be lost to the end audience. Sometimes I find it a little sad we see the simplest-looking output and have no idea about the amount of time and thinking spent to refine a design to that point.
Abduzeedo had written a post about designer/creative Tom Anders showing some of the process and thinking behind his animal logos. I love the geometry behind it all. Check it out.

http://abduzeedo.com/new-animal-logos-construction