3 more points...

White
• Type size must increase as line length increases

Maitra & Goswami
• Maitra and Goswami talk about document design as a communicative response to a rhetorical situation; therefore the process of designing the final product must involve an examination of the problem (the reason that the document is necessary as a response to the situation) and the potential audience. Not every audience is going to have a need for or completely understand a particular document.

• Our ingrained cultural values and assumptions dictate the way we read and understand a document (text and visuals).