Calibri font has "I" and "l" the same, according to Wikipedia. A better font should avoid characters being too similar (such as "I" and "l" and "1"). Another issue is due to the font size and font metrics, how much space it will take up on the page, to be small enough to avoid wasting paper and ink but also not too small to read. So, there are multiple issues in choosing the fonts; however, Times New Roman and Calibr…
A font was the en_US version of fount. A fount was a particular example of a typeface. A typeface is something like TNR or Calibri. They all seem to have been munged into a single set of synonyms except for fount which has been dropped (so why do we still have colour and all that stuff)? A print, then typewriter, then computer typeface emulates a written script but also takes on a life of its own. Handwriting in engl…
https://en.wikipedia.org/wiki/Ligature_(writing)
Same root as "ligament" and "ligand."