I found this just now in regard to length of fictional works... pretty interesting, I thought...
Micro-Fiction
~ up to 100 words
This very abbreviated story is often difficult to write, and even harder to write well, but the markets for micro fiction are becoming increasingly popular in recent times. Publishers love them, as they take up almost no room and don't cost them their budgets. Pay rates are often low, but for so few words, the rate per word averages quite high.
Flash Fiction
~ 100 - 1,000 words
This is the type of short-short story you would expect to find in a glossy magazine, often used to fill one page of quick romance (or quick humor, in men's mags) Very popular, quick and easy to write, and easier to sell!
Short Story
~ 1,000 - 7,500 words
The 'regular' short story, usually found in periodicals or anthology collections. Most 'genre' zines will feature works at this length.
Novellette
~ 7,500 - 20,000 words
Often a novellette-length work is difficult to sell to a publisher. It is considered too long for most publishers to insert comfortably into a magazine, yet too short for a novel. Generally, authors will piece together three or four novellette-length works into a compilation novel.
Novella
~ 20,000 - 50,000 words
Although most print publishers will balk at printing a novel this short, this is almost perfect for the electronic publishing market length. The online audience doesn't always have the time or the patience to sit through a 100,000 word novel. Alternatively, this is an acceptable length for a short work of non-fiction.
Novel
~ 50,000 -110,000
Most print publishers prefer a minimum word count of around 70,000 words for a first novel, and some even hesitate for any work shorter than 80,000. Yet any piece of fiction climbing over the 110,000 word mark also tends to give editors some pause. They need to be sure they can produce a product that won't over-extend their budget, but still be enticing enough to readers to be saleable. Imagine paying good money for a book less than a quarter-inch thick?
Epics and Sequels
~ Over 110,000 words
Copyright 2002 Lee Masterson