A novella is a work of prose fiction with a length between a short story and a novel. Many define a novella as between 20,000 and 49,999 words (and approximately < 100 pages). The Science Fiction and Fantasy Writers of America defines a it as being between 17,500 and 39,999 words in length. In this wiki, a novella's title is usually enclosed with double quote symbols, and an example of a novella is "Of Mice and Men" by John Steinbeck.
The word novella was originally an Italian one meaning a tale or piece of news and as such was applied to the work of such writers as Boccaccio. The word novel comes from the same source, although the full length novel evolved many years later.
- http://www.sfwa.org/awards/faq.htm#6 Science Fiction and Fantasy Writers of America FAQ
- J.A. Cuddon (1999) The Penguin Dictionary of Literary Terms and Literary Theory