What is the study of writing systems called ?
e.g. systems like Latin/Roman, Devanagri, Kannada script ...
I want to spend some time learning about the history and forms of glyphs from different (and related by origin) scripts and common features among them.
Specifically, I am looking for a word, if there is one, for this kind of study to better locate related books/papers/courses etc.
Also, any suggestions on where/what to start with would be appreciated.