1. Monogram logos (or lettermarks)
Monogram logos or lettermarks are logos that consist of letters, usually brand initials. IBM, CNN, HP, HBO… Noticing a pattern, yes? They’re the initialisms of a few famous businesses with rather lengthy names. With 2 or 3 words to remember, they’ve each turned to using their initials for brand-identification purposes. So it makes perfect sense for them to use monograms—sometimes called lettermark logos—to represent their organizations.