Every nonfiction book begins as a promise. Long before the manuscript exists, a writer must convince an agent and an editor that the book deserves to be written — and bought. That promise has a name. It is the book proposal, and learning how to write a nonfiction book proposal is the single most useful skill a serious nonfiction writer can develop.
I have spent thirty years in this world as a writer, teacher, speaker, and mentor in creative nonfiction, and I can tell you that talent alone does not sell a book. Strategy does. A proposal is where the two meet.
What a Book Proposal Really Is
Think of a book proposal as the business plan for your book — your literary pitch deck, your blueprint, your case for why this book should exist at all. It is not a summary. It is an argument.
A strong proposal answers four quiet but ruthless questions. Why does this book matter? Why are you the person to write it? Where does it sit in today’s crowded marketplace? And — the question writers most love to avoid — why will it sell? Get these right and you have something an agent can champion in a room full of editors.
Why the Proposal Comes First
For most narrative nonfiction, the proposal precedes the book. You are not selling a finished manuscript. You are selling a vision, a voice, and a sample chapter polished until it gleams. That is daunting. It is also liberating. It means you can win a publisher’s enthusiasm before you have written eighty thousand words on faith alone.
The craft of the proposal is its own discipline. An overview that hooks. Chapter summaries that reveal scope and arc. A comps section built on confidence rather than the dreaded claim that nothing like your book exists. An author platform that makes your case without apology. None of this is intuitive. All of it can be taught. And I love the business side of publishing, especially when that intersects with making dreams come true with hard work.
And my students get published, win awards, and gain valuable lifelong writing friends through the warm and supportive community of each class.
What You’ll Learn This Autumn
This is exactly what we build together, step by step, in my autumn course: Writing a Nonfiction Book Proposal That Gets You Published.
Over the term we meet live online, every other Sunday, to assemble an industry-standard proposal of thirty to forty pages — the overview, the chapter summaries, the market positioning, the platform, and a voice-rich sample chapter. You will receive detailed, publishing-calibre feedback at every stage, the kind of close reading writers spend years searching for. The cohort is capped at sixteen, so no one writes in a vacuum and every voice is heard.
It suits first-time authors seeking traditional publication, experienced writers moving into longform nonfiction, and anyone craving structure and insider knowledge of how agents and editors actually think. Whether your subject is nature, travel, food, memoir, place, or something gloriously hard to categorise, you will leave with a submission-ready proposal — and the confidence to send it out.
How to Write a Nonfiction Book Proposal – Join Me This Autumn
The course runs every other Sunday from 6 September to 6 December 2026, 6:30 to 8:30 PM BST, live online via Zoom. Tuition is £650 per term, with instalment options offered through the payment portal for those who need them.
If you have been waiting for the right moment to learn how to write a nonfiction book proposal, this is it. Autumn is a fine season for beginnings. Let’s get your book onto the page where it belongs.
Learn more about the course here.