It is interesting to look at code not only from the content aspect, but also from the appearance. The appearance of code can give hints how to refactor it.
Beyond the mere visual aspect of code, the shape of a piece of code can carry information by itself. Being able to decipher this information allows to glean indications about the code at a glance, even before starting to read it. This information is valuable in itself, and afterwards during the reading of the code itself.
The Shapes of Code