What is a story arc and why is it important?
A story arc is the episodes within a storyline, the narrative structure of a book or a story (or a film, or TV series). It is the rise and fall of tension, as well as the pace and timbre of a plot. Shifts in the actions and behaviours of the characters, as they evolve and are changed by what happens to them, should force changes in tension.
Although an arc suggests a curve, most stories look more jagged. The image above is only one of the many examples of a story arc, with a fairly classic rise and fall of tension, and ending with a denouement, a resolution. Films often use a simplistic three act structure: Setup – Confrontation – Resolution. Short stories also have a story arc, unless you are Lydia Davis! Her short story, Children, is a mere two sentences.
The introduction draws the reader into a setting, the characters, their goal, and any potential. This is where the reader discovers what drives the protagonist and what might stand in their way.
A series of complications will often develop in the core of the text, leading to a crisis or a series of problems. Each of these crises may be temporarily resolved, but the narrative will eventually lead to a climax. There is a rise and fall of tension with each crisis, with an overall rise in tension as the reader approaches the climax.
The denouement ties up the loose ends and resolves the conflict. Tension, at this point, rapidly dissipates, leading towards the ending.
The three act structure was used by Aristotle and in Greek tragedy.
The importance of a story arc lies in the need for structure, however varied. Without it, the reader will meander through the book, invariably getting lost and will want to put the book down. As a writer, you need to hook the reader to keep them turning the pages. Structure is an area of writing that I try to focus on, as I naturally tend not to plan too much of the plot. It depends on your genre and crime thrillers will demand many more plot twists and much higher levels of tension than literary fiction, for example, but the story arc should be such that the reader’s emotions rise and fall throughout the narrative. Too much high tension, and the reader will run out of steam, too little tension and you will lose the reader all together.
I’ll leave you with a humorous video of Kurt Vonnegut on Cinderella and the shapes of stories. It’s highly exaggerated but worth watching.
Kurt Vonnegut on the Shapes of Stories