A writing system, technically referred to as a script or an orthography, consists of a set of visible marks, forms, or structures called characters or graphs that are related to some structure in the linguistic system.
How languages are written. How there are so many different ways.
From hieroglyfs to computer code, we really have an infinity of writing systems.
Yes, I am the kind of nerd kid who invented my own language complete with grammar books and it’s own alphabet.