many decades ago when I took High school Print shop, the rule of thumb was not more than 6 faces in a publication.
(no order)
- a display for for titles
- a first letter / drop cap
- a script for handwritten or mono-space for computer / text msg
- the main body text
- a special for signs / labels (Keep Out... ) or Telepathy / AI implant
The font chosen, contributes to the story or character
