A
novel's primary purpose is to tell a story but people
make the story happen. In real life, each of us is entirely unique;
we are far too complex to understand or describe. In literature,
characters are abbreviated to what is necessary for the story. E. M.
Forster in his book Aspects
of the Novel
(1927) divides the characters we find in fiction into FLAT and ROUND.
FLAT
characters (also called humours, types, or caricatures) in their
purest form are constructed around a single idea or quality. If, for
example, in all dialogue and narration of a novel, all we learn about
George is that he hates his mother, then George is a flat character.
He might never actually utter the words “I hate you” to his
mother, but if in all his dialogue, action and thoughts he has no
existence outside that phrase, no private life like the rest of us,
no other pleasure other then hating his mother, then George is as
flat a character as he can be. In fact he is not a character but an
idea personified. Anything more we learn about George, his physical
description, his hobbies, his relationship with other people, etc,
work to make him more round.