Why artists need to market themselves? So that, you the artist, wouldn’t starve to death.
No, but seriously. Otherwise, you risk ending up like Vincent Van Gogh who (in the words of Steven Pressfield) “produced masterpiece after masterpiece and never found a buyer in his whole life.”
A lot of artists have this notion that they’re the creative person, and marketing belongs to the business world. Some even think it’s evil or dirty to promote themselves, and they don’t want to have anything to do with this” filthy” world.
The truth is, it’s your job to market yourself. You are the artist, and you know how to spread the word about your work. After all, you created it. You can’t rest after creating your art; you need to start marketing it.