How to Write a Nonfiction Book Proposal That UK Publishers Will Read

Most proposals are turned down on the first page. Not because the idea is weak, but because the editor cannot yet see the book. A commissioning editor reading your proposal is doing two things at once: judging whether this book could work, and imagining how they would argue for it in an acquisitions meeting on Tuesday morning. Everything you write should make that easier. A proposal is not an essay about your subject. It is a case for a book, made in a few thousand well-ordered words.

What a Proposal Is Actually For

A proposal has one job: to persuade someone to pay for a book that does not exist yet. That someone may be a literary agent, or an editor at a trade publisher, or both. Whoever it is, they read with three questions in their head.

• Is there a market for this?
• Can this person write it, and will they deliver it?
• Can I persuade my colleagues to publish it?

Answer those questions on every page and you are already ahead of most of what lands in an editor's inbox. Most proposals run to somewhere between fifteen and thirty pages once sample material is included, but length matters far less than density. Every paragraph should be doing one of those three jobs.

The Overview: One Page, One Promise

The overview sits first and does most of the selling. Four hundred to six hundred words is usually enough. In that space you need to cover the title and subtitle, the promise the book makes, the reader it makes that promise to, why the subject matters now, what is genuinely new about your approach, and the shape of the finished thing: rough word count, illustrations if any, and when you can deliver it.

The difference between a limp overview and a strong one is rarely vocabulary. It is specificity. Compare these:

Weak: This book will explore the world of home preserving.

Strong: A practical guide to putting up a year's worth of fruit and vegetables in a small kitchen, written for people with a garden, an allotment or a good market within walking distance.

The second version tells an editor what the book is, who will buy it, and where it belongs on a shelf. That is the whole job. Offer two or three title options at most, and put the real weight on the subtitle — that is where the promise usually lives.

Market Analysis: Show You Know the Shelf

This section frightens writers, who often read it as a demand for numbers they do not have. It is really a request for evidence that you understand where your book lands.

List five to eight comparable titles, published in the last few years, with a line or two on each. Say what that book did well, who it served, and what it left undone. Then explain how yours sits alongside them. Name your readers: a primary audience and, if there is one, a secondary audience. Say where the book would physically sit in a shop, and whether it is the kind of title that sells steadily for years or in a burst around publication.

Never claim there is no competition. There is always competition — other books, other ways of spending twelve pounds, a free video that answers half the question. Acknowledging the shelf and explaining your place on it reads as confidence. Denying it reads as inexperience. If you do quote figures, cite the source and keep it recent.

The Chapter Outline: Proof You Can Finish

This is the workhorse of the proposal, and the section that separates serious submissions from hopeful ones. A flat list of chapter titles tells an editor you have a subject. An annotated outline tells them you have a book.

What Each Entry Should Do

• State the chapter's job in a single sentence.
• Sketch the ground covered, in order. Two or three concrete examples beat a list of abstract topics.
• Name the case studies, interviews or sources you can draw on.
• Say what the reader takes away: a method, a decision, a change in how they see something.
• Flag anything visual — a diagram, a chart, a photograph, a table.

A hundred to two hundred words per chapter is plenty. It also helps to note what the book deliberately does not cover; scope is as useful to an editor as content.

The Sample Chapter

Include one or two chapters written in full, usually the opening and one from the middle. This is the only place in the proposal where your voice has to carry the weight, so make it your best writing. Check that your spelling is consistently British, that you address the reader the same way throughout, and that any exercises or examples actually work. If the book teaches something, show the teaching happening.

Author Platform: Reasons to Believe You Will Sell Books

Platform is not a euphemism for follower counts. It means evidence that readers exist and that you can reach them. A specific, modest audience beats a large, vague one: "I send a monthly email to 2,400 subscribers, and roughly forty per cent open it" is far more persuasive than "I have a strong social media presence".

What counts? A newsletter, a course you teach, a podcast, membership of a professional body, regular speaking engagements, a clinic or consultancy, radio and press contacts, a day job that puts you in front of the people who will buy the book. Then add a short, realistic note on what you will do around publication. Editors can tell when a writer is promising a book tour they have no way of delivering.

Practical Details: The Order of the Package

Editors read quickly and on screen. Give them a document that behaves itself.

1. Title page. Title, subtitle, your name, contact details, approximate word count.
2. Overview. The one-page case for the book.
3. Author biography and platform. Who you are, why you, and how you reach readers.
4. Market and competition. Comparable titles and your place among them.
5. Annotated chapter outline. Chapter by chapter, as above.
6. Sample chapter or chapters. Polished, complete, correctly styled.
7. Delivery note. Word count, deadline, illustrations, permissions, anything unusual.

Use one font, one heading style, numbered pages and a header carrying your name and the title. Send a PDF so the layout holds wherever it is opened.

Before You Send It

Read your overview aloud. If you stumble, an editor will too. Give the whole proposal to two people who read books in your area and ask them what they think the book is — if they cannot say, the proposal is not finished.

Then check the submission guidelines, every time. Many publishers and agencies state exactly what they want and what they will not open; a proposal that ignores those instructions has already been rejected. Note, too, whether simultaneous submissions are welcome — agencies usually accept them, publishers often do not — and respect what each one says.

A proposal is a piece of writing in its own right. Done well, it is a clear argument made in the right order, and it leaves an editor with only one sensible question: when can we have the rest?

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