Creative writing is any form of fiction, non-fiction, or poetry that is not technical in nature. Writing creatively is known as free writing, the type where there are no rules or structure to follow. Creative writing can be found in novels, short stories, articles, poetry and even screenplays. Writing creatively is a more modern style of writing than any other kind. Writing creatively represents anything that is original. Creative writing is the medium that celebrates self expression. It allows you to express your opinions, thoughts or ideas in any medium or form.
If you're new to writing you might want to start with something small to get a taste of it. By writing a short story you can get an idea of what's involved in creative writing. If you start with a novella or novel you'll probably quit before you finish it. Novellas and novels take a lot of passion and discipline to finish. In fact quite a lot of writers have trouble finishing long works of creative writing so many just stick to writing short stories or poetry. Novel writing can be very challenging and sometimes takes years to finish. Keep in mind that not everyone can write creatively. Some people don't do well with the freedom and lack of structure. Also coming up with characters and events that are intriguing to readers is not an easy feat. But once you do finish a novel or short story, and it's complete, the feeling you get is amazing.
Grade school teaches you the basics of writing creatively. But if you're really looking into the subject colleges and universities are where the knowledge is at. They offer courses in different areas and give you the special one-on-one attention you may need. They also show you different genres of writing and you learn what types you enjoy to write about.
Using creative writing prompts is another way to get ideas for plots and characters that will take you on a creative path.
Trying to get published in the writing industry is very competitive. Unless you have an idea that the publishers are looking for, and it's the right place at the right time, getting published by a large publishing house is not easy. In fact many authors are published only after many attempts and many rejection letters later. Either way, if you love creative writing, practise, practise, practise. The more you write and the more you read, will help you improve your writing.