The document categorizes and defines six main font styles: Oldstyle, Modern, Slab Serif, Sans Serif, Script, and Decorative. It provides examples for each category and defines their key characteristics, such as Oldstyle fonts having slanted serifs and medium thick-thin transitions, making them good for body text. Modern fonts have thin, flat serifs and dramatic thick-thin transitions, making them suitable for headlines. The document instructs students to find examples of five fonts for each of the six categories.