You'll never be able to read every story out there, but there's a good chance you've already read every story type.
Researchers at the Computational Story Lab at Burlington's University of Vermont data-mined through 1,700 popular fiction stories and determined that they all follow one of six emotional arc types. They are as follows:
- A rags-to-riches, steadily rising emotional arc, as in the case of "Alice's Adventures Underground" by Lewis Carroll.
- A steadily declining emotional arc, often seen in tragedies, like in Shakespeare's Romeo and Juliet.
- A fall and then a rise.
- A rise and fall.
- Rise-fall-rise, like in the "Cinderella" fairly tale by Charles Perrault.
The researchers' computers scanned the novels for words that convey either positive or negative emotion and used that information to determine the arc's trajectory throughout a story.
You can find it explained in greater detail by MIT Technology Review here.