Do you wish to learn how creatively a logo can be produced, read the story on MIT Media Lab. They have recently changed their logo, only after three years. Interesting part is, logo is unique yet, very different for each of its individual unit.
Its difficult to describe the iterative process of logo design, but surely its very refreshing. How recombining the logic, a completely different result without disturbing the brand identity could be created. If you are interested in graphic design, surely you would not be disappointed. Also, i recommend watching 1 minutes Youtube video.
Total Reading Time : 5 minutes + 1 minute Youtube Video.