Form Very often, how light or heavy, wide or narrow, stooped or straight we are depends largely upon our heritage or the way we were raised. This finding is true of type, as well. Typefaces have specific attributes. These attributes are referred to as form. Form specifically relates to the shape and direction in which a given typeface is presented, and includes weight, width, and posture.
Some typefaces are dark and heavy, others, light and slender.
Type weight influences the way faces appear. Regular is the average weight class, simple and unadorned. Bold is heavier and slightly wider than regular typeface and is used to emphasize text. Light typeface is slender, and as its name implies, lighter than regular typeface. It also has a subtler impact than regular or bold forms and can help achieve a minimalistic look.