A reference on how books are made readableNot a library · no catalogue · nothing to borrow
Accessible Book Collection
The register · Entry 01

How a book is made readable

Braille, structured text, recorded audio and large print are four different manufactures, not four settings on one machine. This site is filed by the format rather than by the book: each entry states plainly what that format preserves and what it loses, so the trade-offs sit side by side.

Start with Six Dots, and What They Carry · 4 min read

A braille embosser mid-run, fanfold paper stacking in the tray
Interpoint embossing puts dots on both sides of the sheet, offset so that they never collide.

The register of formats

Register 01
№SectionWhat it holdsWhat it does notEntries
01BrailleThe exact text, its spelling and its print page references, read by touch with no device required.Bulk. One print volume becomes several, and anything laid out in two dimensions survives only as a translation.6 entries
02StructureThe shape of the book — headings, page targets, reading order, and images that have been described.Nothing of the text itself. What it lacks is publisher practice, which is where the format keeps failing.5 entries
03AudioVoice, pacing and the sense of the sentence, at whatever speed a practised listener chooses to run it.The page. Footnotes, tables and captions have to be announced, moved or dropped, and the decision holds for the whole book.5 entries
04Large PrintThe printed page itself, read with residual sight, unaided or with a lens.Measure and page count. Bigger type on the same width gives too few words per line, so the book grows.4 entries
05PermissionThe legal basis on which a copy may be made at all, and sent across a border.The copy itself. An exemption permits production; it does not fund it, staff it or guarantee that it happens.4 entries
06The RoomThe real cost of the work — hours, equipment, certification and proofing, counted per title.Scale. Every title starts again from the beginning, which is what sets the size of the catalogue.4 entries
6Dots in a cell, each raised or flat
63Usable combinations; the sixty-fourth is the space
26Of them spent on the alphabet
28Entries in the register, across six sections

The cell carries the alphabet, the numerals and the punctuation between them. Everything after that is convention laid over six positions — and a separate code for every notation that is not English prose.

A braille proof sheet under a desk lamp, raking light across the dots
Raking light is for the sighted. The proofreader works with fingertips and the print original.Photo: Eren Li / Pexels
Section 01

Braille

Six dots, and everything built on them.

What it holds
The exact text, its spelling and its print page references, read by touch with no device required.
What it does not
Bulk. One print volume becomes several, and anything laid out in two dimensions survives only as a translation.
Close-up of an open book page embossed with rows of braille dotsTwo hands rest on an open book, fingertips reading raised braille dots on the pageOpen book with embossed tactile diagrams of head profiles and internal organs for braille readers
3 more in Braille
Section 02

Structure

What makes a file navigable rather than merely readable.

What it holds
The shape of the book — headings, page targets, reading order, and images that have been described.
What it does not
Nothing of the text itself. What it lacks is publisher practice, which is where the format keeps failing.
Close-up of raised braille dots embossed in rows across a pageAn open braille book with pages fanned out on a shelf beside bound volumesPerson seated on a wooden floor reading text on a white e-reader device
2 more in Structure
Section 03

Audio

A recorded book is a performance with rules.

What it holds
Voice, pacing and the sense of the sentence, at whatever speed a practised listener chooses to run it.
What it does not
The page. Footnotes, tables and captions have to be announced, moved or dropped, and the decision holds for the whole book.
Desk with an open book, typewriter, easel with typed pages, and stacked notebooks under lamplightOverhead view of hands holding a pen over an open book amid notebooks and papersA cluttered recording desk with a reel-to-reel player, lamp, papers pinned to a corkboard wall
2 more in Audio
Section 04

Large Print

A typographic discipline, not a font size.

What it holds
The printed page itself, read with residual sight, unaided or with a lens.
What it does not
Measure and page count. Bigger type on the same width gives too few words per line, so the book grows.
Hands resting on an open book with thick, textured pages beside a spiral notebookA metal tape measure lying diagonally across a tan surface with faint triangle patternsSunglasses resting on a spiral-bound braille notebook with sunlight casting diagonal shadows
1 more in Large Print
Section 05

Permission

Who may make the copy at all.

What it holds
The legal basis on which a copy may be made at all, and sent across a border.
What it does not
The copy itself. An exemption permits production; it does not fund it, staff it or guarantee that it happens.
Who May Make the Copy At AllGroom in a navy suit signs a document beside flowers and a priest in green vestmentsWooden shelving unit with sparse books above a long desk and lamp
1 more in Permission
Section 06

The Room

The people and equipment that do the work.

What it holds
The real cost of the work — hours, equipment, certification and proofing, counted per title.
What it does not
Scale. Every title starts again from the beginning, which is what sets the size of the catalogue.
Hands reading a braille document on a desk beside a laptop and abacusFingers reading rows of raised braille dots on a white pageMan in sunglasses sits reading a large bound volume between shelves of archived files
1 more in The Room

Then there is the question of who may make the copy at all

Producing any of these formats means copying somebody else’s book. The terms under which that is permitted — authorised entities, beneficiary readers, national exceptions, cross-border exchange — are set out in the Permission register.

Read the Permission register