Snowflake method
Randy Ingermanson's iterative outliner. Start from a single sentence summarizing the book; expand to a paragraph; expand to a page; expand each character to a one-page sketch; expand again to a four-page synopsis; expand to a scene list. Each step deepens the previous.
Who it's for
Heavy outliners. Writers who can't draft until they know the ending. Big-cast ensemble novels where you need to track every protagonist's arc independently before weaving them. Sci-fi and fantasy with intricate worldbuilding.
The ten steps
- One-sentence summary.
- Expand the sentence to a paragraph.
- One-page character sketches for each major character.
- Expand the paragraph to a page-long synopsis.
- Full character bibles for each major character.
- Expand the synopsis to a four-page synopsis.
- Final character bibles.
- Scene list (one row per scene).
- One-paragraph narrative description for each scene.
- Draft.
Strengths
Almost no surprises in drafting. The book's structure pre-exists the prose; the writer's job is execution. Very effective for ensembles where multiple character arcs need to interlock.
Weaknesses
Slow. Heavy front-loading. Discovery writers will hate it, the prose phase becomes mechanical. For literary or character-driven fiction where surprises matter, snowflake can over-determine the result.
Pendraic notes
Snowflake maps cleanly onto Pendraic's 1p / 3p / 5p synopsis fields plus the Story Index for character bibles. Pair with the Heavy structure preset so beats and synopses stay visible side-by-side. The Engine ships a 10-step beat scaffold matching the method.