"He who marches out of step hears another drum." ~ Ken Kesey
they will often take a good unique font and create to outlines, and make each repeating letter (unique) by changing something to make it more obvious that they are individual and not just typed out but first.
My art training happened right before computers became commonplace. We learned all kinds of hand-lettering from single-stroke lettering to meticulous drafting of various alphabets. I never got really good at it, being more of an illustrator than scribe. I preferred Letraset.Sign painting and pinstriping are coming back into vogue as well. This film looks interesting:http://www.signpaintersfilm.com/#watch