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On Writing Well
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Leads and Endings: The Chain and the Curtain Line

On Writing Well William Zinsser
leads endings structure reader-contract opening closing

Key Principle

The lead is a contract with the reader: it obligates them to the next sentence, which obligates them to the next, forming a linked chain. Every sentence in the lead must earn the sentence that follows. The ending is the curtain line — it must land with unexpected force and leave the reader satisfied without feeling summarized. "No writing decision is too small to be worth a large expenditure of time." (Chapter 23)

Why This Matters

The first few sentences of any piece are where the reader decides whether to stay. Writers commonly treat the lead as setup — a warm-up before the real writing begins — but this inverts the priority. The reader's attention is at its most conditional right at the opening, and every word that delays meaning, over-explains context, or merely promises to get interesting soon is a word working against the contract.

Endings fail in the opposite direction: writers who have delivered their material feel the obligation to summarize, to close off, to bring readers to a tidy conclusion. But the reader does not want a summary; they want the experience to complete itself. The curtain line — the paragraph-ending snapper, the final image that resonates — must arrive with a quality of surprise. A piece that stops when the story tells it to stop feels finished. A piece that continues past that moment into dutiful conclusion feels like it is explaining itself.

Good Examples

Weak lead pattern — the breakfast-to-bed approach: Starting at the beginning of the experience and narrating forward in order. "We arrived in Timbuktu on a Tuesday morning after a long flight through Paris. The heat was immediate. We checked into our hotel and began making inquiries about the salt caravan." This pattern buries the arresting idea under logistics and gives the reader no reason to stay.

Strong lead — the Timbuktu model: Zinsser's five opening sentences of "The News From Timbuktu" are plain declaratives, no commas, each sequencing one idea and preparing the ground for the next: readers are given "an arresting notion to think about" before anything else is asked of them. (Chapter 23) The lead ends when all necessary groundwork is laid and the writer can shift to a more relaxed storytelling pace. An asterisk then signals to the reader that a section has closed and a new one is beginning — structural communication delivered silently.

Joan Didion's accumulation model: Didion opens with specific, loaded details — divorce statistics, motel names, actual signage — that do double duty as place description and cultural diagnosis. Each detail obligates the reader to the next not because of dramatic tension but because the details accumulate meaning. The reader senses a governing idea forming and wants to see it complete itself.

Counterpoints

The Section III trap — surplus research: Writers who have gathered far more material than the piece requires often feel obligated to use it. They open with context, background, and history that belongs in a different, longer piece. The binding question is not "what do I know?" but "what does the reader need for this piece?" Over-informing from the first sentence signals that the writer has not yet committed to a specific audience.

The premature climax: Writers who feel they have a strong ending sometimes arrive at it too quickly, before the reader has been given enough to make the landing resonate. The curtain line earns its force from what precedes it; placed too early, the same words produce a thud instead of a bell.

Forcing the ending past the true climax: Zinsser realized his Sahara piece had already peaked at the nomad family offering him dinner — the moment that distilled the piece's real theme — but felt obligated to follow events to their literal conclusion (salt unloaded, salt sold). Resistance to writing the obligatory section was the material communicating that the story was over. "When you get such a message from your material — when your story tells you it's over, regardless of what subsequently happened — look for the door." (Chapter 23)

Key Quotes

"All your clear and pleasing sentences will fall apart if you don't keep remembering that writing is linear and sequential, that logic is the glue that holds it together." — William Zinsser, Chapter 23

"No writing decision is too small to be worth a large expenditure of time." — William Zinsser, Chapter 23

"Often the story will tell you where it wants to stop." — William Zinsser, Chapter 23

"When you get such a message from your material — when your story tells you it's over, regardless of what subsequently happened — look for the door." — William Zinsser, Chapter 23

Rules of Thumb

  • The lead ends when the groundwork is laid — not when you run out of context to provide.
  • Every sentence in the lead must obligate the reader to the next one; if it doesn't, it shouldn't be there.
  • Use an asterisk or section break to tell readers a phase has ended — they read this as structure, not typography.
  • The true ending is where the piece's real theme resolves, not where the events stop.
  • When approaching your conclusion feels like drudgery, that is the material telling you the story peaked earlier.
  • Snappers — dry, unexpected observations at paragraph ends — reward the reader and propel them forward.
  • Do not summarize at the end; complete the experience.
  • Spend disproportionate time on the lead: Zinsser spent as long on six lead paragraphs as on the rest of a long piece combined.

Related References