Selecting a letterform from the explorations is a crucial stage again. This stage is where a type is made. To select a letterform one needs to be aware of these factors:
Intution is essential. But intution alone is not enough to select a perfect from out from the rest. Intution will only act as a pointer. A type designer has to analyze those pointers. Intution may point to more than one letterforms. As a type designer, one has to measure the qualities of the forms. Here the artist exits.
A mathematician enters. The letterform can be analyzed based on these factors: size, simplicity, motion, strokes, angles, endings, flourishes, links, lines, loops, circles, fly-wheels, pegs, breaks, and dots. And a type designer has to see all this in every letterform before selecting the one that best suits the need. The mathematician exits.
A surgeon enters. With utmost care, every letterform has to be disected and categorized under a family. Again when a type designer is categorizing, he or she may use self-defined criteria. Here the scope of work just moves beyond letterforms. The surgeon exits.
A critic enters. This is the stage where a type designer will embrace a letterform and maybe take it further than expected. At this stage, every letterform becomes an insight.
Here is a scan of a few base letterforms: