Typography is the study and creation of typefaces, or fonts. All the fonts on your computer were created by a person, or group of people at some point, and they labored over sizes, pixels, scaling, and style. Different font types have different purposes.
There are great typographers just like there are other great artists; people who can make a new font that is elegant and stylish and fills a need. Then there are people who study those people, to find out what makes them good at it. Is it art? Math? Both?
I recently found a cool post that showcases the handwriting of some great fontographers, so we can see how they write to see if there are any clues. I think some of them are quiet funny, and some very interesting. One woman has distinct deliberate fonts that she uses when she writes with a pen. That’s really interesting to me.