Most of the examples in A Type Primer are intended as exercises you can do yourself.
On nine 6″ (152 mm) squares, present sections of a letterform that highlight its unique characteristics, keeping in mind the contrast between form and counterform. Note the point at which the letterform is no longer recognizable.
This project is most beneficial when hand-rendered. However, you can produce it digitally. Remember, one of the discoveries of this exercise is to find that moment when the letterform no longer reads.