A large type family like Helvetica Neue can be used to express a range of
voices and emotions. Versatile and comfortable to work with, these faces
are like a favorite pair of jeans for designers.
Know Your Families: Grouping Fonts
The clothing analogy gives us a good idea of what kind of closet we need
to put together. The next challenge is to develop some kind of structure by
which we can mentally categorize the different typefaces we run across.