Letters, texts and documents inside a novel
Somewhere in your novel a different voice takes over for half a page. A letter arrives. A character reads a diary. A newspaper clipping is pinned to a board, an email is forwarded, a prophecy is recited, a spell is read aloud from a book nobody should have opened.
The job is narrow and it is not decorative: the reader has to know the voice has changed before they read the first word of it. Get that right and the insert does its work silently. Get it wrong and the reader spends two lines confused, then reorients, and the effect you were reaching for is gone.
Space and shape do the work, not decoration
A reader takes in the shape of a page before they read it. A block that is narrower than the text around it, or sitting in its own white space, has already announced itself at a glance — no border, no ornament, no second font required.
That is the whole principle. Everything below is a way of changing shape.
The devices, ranked by how well they survive
Use one or two of these, never all of them. In rough order of reliability:
- Indent the whole block. Move the left margin in by the same amount as your paragraph indent, or a little more, for every line of the insert. It is the strongest signal available, it costs nothing, and it survives a page break, a trim change and an ebook. If you do one thing, do this.
- Step the size down. One point below the body size, with the leading reduced to match. Less than a point is invisible; more than two starts to look like a footnote. Combined with the indent, this is the standard setting for a long letter.
- Italic — for short passages only. Italic is excellent for four lines and punishing for four pages. The letterforms are narrower, the strokes lighter, and readers slow measurably over sustained italic. This is the single most common mistake in inserted documents, and it is always made with good intentions. A telegram, a chanted line, a one-sentence text: italic. A three-page letter from a dead mother: not italic.
- A genuinely different face. Justified only when the document is genuinely a different object — a typed report, a printed notice. Pick something clearly distinct from your body face rather than a near-neighbor, because a small difference reads as a mistake rather than a signal. Choosing a typeface for the body of a book applies here too.
- White space above and below. Roughly a line of space each side. On its own it is weak; added to an indent it is what makes the block read as a separate object.
Whatever you pick, keep the insert's own internal rules consistent: Indents, spacing, and how paragraphs should start has the defaults you are stepping away from.
Why a handwriting font is nearly always wrong
The instinct is obvious — the letter is handwritten, so set it in handwriting. It fails for three reasons, and they compound.
It is hard to read at body size. Script faces are drawn for a headline or a wedding invitation, at a size where the connecting strokes resolve. Set at 11 point across four inches of a printed page, the joins fill in and the reader is decoding rather than reading.
It dates the book faster than anything else on the page. Script and novelty faces belong hard to the decade they were drawn in, and a reader picking up your book in eight years will place it instantly.
And it fights the page. A body face is designed to disappear; a display face is designed to be looked at. Put them in the same column and the reader's eye keeps going back to the wrong one.
An indent and a size step will carry "this is handwritten" perfectly well, because the prose already said so.
In the Interior Formatter. A .docx is read for structure only — chapter starts, italics, bold, scene breaks — so the styling you apply consistently in the manuscript is what carries an inserted block through to the page, and the same source produces both the print PDF and a reflowable EPUB 3. Start your interior → · about the Interior Formatter
Text messages are the unsolved one
Screen conversations are the modern inserted document, and unlike the letter they have no settled convention. Published novels currently do all of these: a plain indented block with the sender's name; small caps for the sender and roman for the message; the whole exchange in a monospaced face; the exchange written into the narration as ordinary dialogue.
All of them work. What does not work is using two of them in one book.
Resist reproducing the phone. Speech bubbles, alignment left and right by sender, a rendered interface — these depend on exact positions, they date to the current handset, they cost you color or gray tints in a black-ink interior, and they shatter the instant the exchange runs over a page. Pick a text treatment, write it into your style sheet, and use it identically from the first exchange to the last.
It has to survive a page break
An insert of any length will eventually land across a page turn, and this is what kills the decorative treatments. A box around a letter looks considered on one page and broken when the rule runs off the bottom of a recto and a second rule starts at the top of the verso. Same with a rule above and below, or a tinted panel.
Indents and size steps survive the break because they are properties of every line, not a frame around the block. If you want a frame, keep it for inserts short enough to guarantee they fit — and remember you cannot guarantee that until the pages are set, because changing anything earlier in the book moves them.
In the ebook, it reflows
An EPUB re-wraps at whatever size the reader chooses, so anything that depends on exact line breaks — a centered clipping headline, a letter's aligned signature block, an ASCII-art spell — will land somewhere you did not plan. Indents and relative size steps survive; absolute positioning does not. Reflowable text, and the things that break it covers the general case, and Setting poetry without wrecking it covers the hardest version of it.
The practical move is to mark inserts consistently in the manuscript — one style for every letter, one for every text exchange — so the treatment can be applied, checked and changed in one place rather than hunted for. Preparing a manuscript that typesets cleanly is where that starts.
Typeset your book
The Interior Formatter is free to use: name your book, bring your manuscript, and it sets real pages you can read before you commit to anything. You only pay when you want the files without the preview watermark.
Next: Chapter openings and scene breaks · More: Indents, spacing, and how paragraphs should start · Reflowable text, and the things that break it · Accents, symbols and characters that go missing