Typesetting poetry: the line break is the poem

Set a novel badly and it reads awkwardly. Set a poetry collection badly and you have changed the poems.

That is not an exaggeration. In verse, the visual arrangement is part of what the poem is. Line breaks control pace and emphasis. Stanza breaks are breathing. Indentation carries structure. A typesetter who does not understand this will silently rewrite the work while believing they are formatting it.

The four things that go wrong

Lines that wrap

The commonest and worst. A line longer than the text measure wraps to a second line, and the reader now sees two lines where the poet wrote one.

The fix is not clever. Set the measure from the longest line in the entire collection. That may mean a wider trim size or a smaller point size, and both are worth it. Where a line genuinely must run over, it should carry a distinct continuation indent so the reader can see it is a continuation rather than a new line.

Stanza breaks lost at page turns

A stanza break falling exactly at a page break disappears. The reader turns the page and cannot tell whether there was a gap.

Poems that run over a page need handling: adjust the break point, or mark the continuation. Either is fine. Silently losing the gap is not.

Indentation flattened

Poets indent deliberately — to mark a shift in voice, to represent a physical shape, to slow the eye. Templates that normalise leading whitespace destroy this, and it is often not noticed until the printed book arrives.

Concrete and shaped poems

Poems whose arrangement is the meaning need to be treated as images in the layout: positioned exactly, protected from reflow, and proofed carefully. A typesetter who does not recognise what they are looking at will "tidy" them into nonsense.

Digital editions

Reflowable eBooks are hostile to verse by design. The reader chooses a font size and the text rewraps, which is exactly what must not happen.

Line protection helps: proper markup so each line is a line, with a consistent continuation indent when a line cannot fit. For collections with heavily shaped work, fixed-layout is the honest answer, and occasionally the honest answer is that the digital edition is not worth making.

The question to ask a typesetter

Ask what measure they intend to set and how they arrived at it. If the answer references the longest line in your manuscript, you are in good hands. If it references a house default, keep asking.