Books and stories come in a variety of sizes (modified from the Science Fiction Writers of America):

•        0 –     100    Micro fiction
•     101 –   1000   Flash fiction
•   1001 –    3000  Short short story
•    3001 –   7500  Short story
•   7501 – 17500  Novelette
• 17501 – 40000  Novella
• 40000 +             Novel