What is the difference between writing and drawing?

Writing is a way and a tool for human beings to record and express information using ideographic symbols.

Writing in the beginning was also considered a picture, because it was drawn with reference to the characteristics of various things, called hieroglyphics, and it can be said that pictures are the prototype of writing. The image below is sourced online.

But these pictures were not good for drawing, so slowly, the words were changing and becoming less like pictures, and people also started to make huiyi characters, referring characters, and shaped characters based on hieroglyphic characters. Especially nowadays, the simplified characters are more like a symbol with meaning, completely different from pictures.