Novel is fictional genre that contains longer narrative prose, presenting a lengthy tale of imaginary or fictional characters, whereas novella is different from novel in its length, as it is a fictional genre that is longer than the short story and shorter than the novel.
Novella is generally a category falls between a novel and a short story. Some other differences are,
- Structure wise, a novel contains chapters whereas novella usually does not have.
- A novel contains a very complicated plot and many characters, while novella is not very complex plot and has fewer characters.