A diary is the least self-conscious kind of writing there is. You wrote it for one reader, and that reader was you. That is precisely why other people find diaries so compelling — and precisely why turning one into a book takes more work than most diarists expect. Nothing about the process is mysterious, though. It is editing, permissions, a couple of numbers, a printer, and a decision about how the finished book reaches readers. Here is how it works in the UK.

First, decide what your book actually is

A diary is a record. A book is a story, a portrait or an argument. Before you touch a single entry, work out which of those you have. A year in a Welsh village, a decade of night shifts, a long walk, the first three years of a small business: each one suggests a different shape, and a different set of cuts.

Three questions will keep you steady:

• What period does the book cover, and why that period rather than another?
• Who is the reader — family, strangers, or people in the same situation as you?
• What do you want them to feel on the last page?

Write your answers down. When you are three months into editing and cannot face another Tuesday in February, those answers are what tell you whether the Tuesday stays.

Editing without flattening the voice

Diaries carry repetition, in-jokes and a great many uneventful days. Keep the texture; lose the filler. A method that works:

1. Get the whole diary into one digital file — typed, scanned, or a mix.
2. Read it through once without changing a word, making notes as you go.
3. Mark each entry as keep, cut or maybe. Be decisive with the keep pile later.
4. Work in passes: structure first, then chronology, then the line-by-line tidy-up.
5. Read the result aloud. Anything you stumble over gets rewritten.

Keep the scaffolding

Dates, weather, place names, the price of a pint — these are the details that make a diary feel like a diary rather than a memoir written from memory. Keep date headings, even if you shorten them. Keep the odd dull sentence if it sets a scene.

Explain what only you know

Your reader was not there. A short preface, a page listing who's who, and a handful of brief clarifications will save a great deal of confusion. Keep them neutral in tone. A heavy editorial voice, commenting on your own past self every few pages, smothers the diary it is trying to help.

Permissions, privacy and the people in your pages

This is where diary publishing gets interesting, because a diary is full of other people.

• Other people's words. Quoting a letter, an email, a poem or a song lyric normally needs the copyright holder's permission. A letter belongs to the person who wrote it, even if the paper is yours.
• Photographs. Copyright usually sits with the photographer, not with whoever owns the print. Family snapshots are not automatically free to use.
• Living people. Defamation and data protection law both apply to what you publish about identifiable individuals, even when what you have written is true. Truth is a defence in defamation, but it is not always a simple one to argue.
• Family and friends. Not a legal matter, but a human one. Showing people the pages that involve them before publication prevents most of the trouble you could otherwise meet afterwards.

Many diarists adopt a house style for names — initials, first names only, or pseudonyms — and state it plainly at the front: Some names and identifying details have been changed. If your diary involves identifiable living people, or you are unsure about quoting someone else's material, take advice from a solicitor who works in publishing. It is cheaper than being asked to pulp a print run.

The paperwork: ISBN, copyright page, legal deposit

ISBNs in the UK are issued by Nielsen. You need one per format, so a paperback and an ebook are two separate numbers. You do not have to set up a company to publish; your own name can appear as the publisher. If you expect to sell in any quantity, it is worth a conversation with an accountant about how the income is treated.

Every book also needs a title page and a copyright page carrying the year and the name of the rights holder, plus the ISBN and a barcode on the back cover. If you publish in the UK, legal deposit rules require copies to be sent to the British Library and the other legal deposit libraries — check the current requirements before you order your print run, as they affect how many copies you need.

Printing: three realistic routes

• Print on demand. No upfront cost, higher cost per copy, perfectly respectable quality for a text-only paperback. Suits small, steady sales and books sold online.
• Digital short run. Fifty to five hundred copies from a UK printer. Cheaper per copy as the quantity rises, more paper choices, and a garage full of boxes.
• Offset litho. A thousand copies or more. The best unit price and finish, but it needs real money and a genuine plan to sell them.

Details that catch people out

Order a physical proof and read it on paper before you approve anything. Check the spelling of every name and place. Decide your trim size early — 198 × 129 mm is the standard UK paperback size and keeps you compatible with most printers. Set the text in a readable serif at around 10.5 to 11 point, and resist squeezing margins to save pages. Finally, spend money on the cover. For a stranger in a bookshop, it is the only page they will read before deciding.

Distribution: how books actually reach readers

Printing makes books. Distribution gets them to people, and the two are separate jobs.

• Amazon KDP is the simplest route to worldwide sales, but high-street shops cannot easily order from it.
• IngramSpark feeds into wholesalers, which means a bookshop can order your title through its usual supplier.
• Trade distribution via a specialist distributor gives you access to UK wholesalers and, in time, real bookshop shelves.
• Selling direct — your own website, local shops on sale or return, talks and events — often outsells everything else for a personal diary.

Whichever route you choose, get your book listed with Nielsen so shops and libraries can find it, and write your metadata carefully: title, subtitle, blurb, author biography, categories. That text is what search engines and booksellers use to describe your book to people who have never heard of you. Be realistic about numbers, too. Most self-published diaries sell in the tens or low hundreds. That is not a failure; it is a reason to keep the print run modest and the effort focused on people who already care.

Before you press publish

1. A final proofread by somebody else, ideally paid.
2. Permissions confirmed in writing, or names and details changed.
3. ISBN assigned and printed correctly, with the barcode on the back cover.
4. Proof copy approved in your hands, not on screen.
5. Distribution route chosen and metadata written.
6. Legal deposit copies planned into your print quantity.

Then launch it locally. A reading in a village hall, a table at a local fair, a paragraph in the parish magazine and a signed copy for your grandmother will do more for a diary than any advertising budget you could reasonably afford. Diaries sell on personal connection. You already have plenty of that — you just have to hand it over.

Photo: lil_foot_ / Pixabay