Paper, Ink and Glare
A large-print book can get the typeface right, the point size right, the leading right, and still be genuinely difficult to read — because the paper throws light back into the reader's eyes. Glare is not a minor annoyance at low vision levels; it compresses the contrast between ink and background until letterforms lose their edges. The material decisions that prevent this are unglamorous and rarely discussed, but they determine whether the typography does its job at all.
01The stock no one thinks about until it fails
Coated stock — the smooth, slightly shiny paper used in illustrated print runs, catalogues and many trade paperbacks — is the primary offender. The clay coating that makes it glossy also makes it reflective. Under overhead lighting, which is where most reading happens, a coated page bounces light toward the reader at angles that shift constantly as the page is held or turned. For someone with macular degeneration or reduced contrast sensitivity, that scattered light effectively lowers the contrast ratio of the page below the threshold where reading becomes comfortable.
The fix is matte or uncoated paper, ideally with a slight cream or off-white tone rather than a bright optical-white finish. Optical brighteners in high-white paper absorb ultraviolet and re-emit it as visible light, producing a brilliance that photography loves and low vision readers do not. A warm, mid-opacity uncoated sheet holds contrast steady across a range of lighting conditions. Opacity matters separately: thin paper that lets the text from the reverse side ghost through — showthrough — creates a visual noise that disrupts letter recognition even when the print itself is sharp.
Weight and thickness serve double duty. A heavier sheet resists showthrough and also lies flat without curling, keeping the reading surface consistent. A page that buckles or rolls changes its reflective angle unpredictably, which reintroduces the glare problem that the paper stock was chosen to prevent.
Ink density has its own requirements. Large-print production uses a heavier ink layer than standard print — not because the letters are bigger, but because they need sharper, cleaner edges at the sizes involved. A slightly underinked impression that is perfectly legible at nine-point body text will show raggedness at eighteen or twenty-four point, where the eye is examining a far larger area of each letterform. Black on a warm-white matte ground, printed with consistent density, is the baseline that all other colour combinations are measured against and rarely surpass.
None of this is exotic. The materials are available; the choices are straightforward. What they require is that someone in the production chain treats paper and ink as typographic decisions rather than logistics — and that large print is understood as typography from the start, not a font-size adjustment applied at the end.
What the choices actually control
From the register| Item | What it means |
|---|---|
| Coated stock | clay surface creates glare; scatters light under overhead fixtures |
| Optical-white paper | brighteners re-emit UV as visible light; reduces effective contrast for low-vision readers |
| Matte or uncoated sheet | absorbs rather than reflects; the standard choice for large print |
| Warm/cream tone | reduces brightness differential without lowering contrast between ink and ground |
| Opacity | a thin sheet allows showthrough from the reverse page, adding visual noise |
| Ink density | heavier impression needed at large sizes to keep letterform edges clean |
Coated stock — the smooth, slightly shiny paper used in illustrated print runs, catalogues and many trade paperbacks — is the primary offender.
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