Answer:
Well that is a glyph. The Ligature occurs when two or more letters are combined to form a glyph. And they are very popular in typography. If you are interested in Typography, you should study glyph in detail, and you will explore a lot of things. They are intended to represent the characters that can be read for writing requirements.
These are very important as well. You will soon find that through them we can define the things quite easily and in less time. Various old scripts make use of these, and you can find them in bulk.
Step-by-step explanation:
The answer is self explanatory. However, do study glyph in details if you want to study typography.