David's post leads to some interesting questions:
1. To what extent (if at all) does a reader's "preference" reflect
"effectiveness", or comprehension?
2. It seems at least possible that fonts preferences vary according to
the purpose of reading - information or entertainment. Has this been
My two cents...
Generally, if the document is meant to be read mostly on-screen--including
PDFs--sans serif is easier to read on most monitors, especially smaller or
older ones. That's why most websites tend to use san serif fonts. I like to
use a san serif that contains lots of styles and
